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1. WO2013001921 - TOUCH SENSOR SYSTEM, AND ELECTRONIC DEVICE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS

Claim 1

A touch sensor system, comprising:

a driving section that (a) drives, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which are orthogonal to one another and include elements each being either +1 or -1 and each of which has a length N, M drive lines in parallel for each of (I) a first capacitance column Cli (i = 1,..., M) formed between the M drive lines and a first sense line and (II) a second capacitance column C2i (i .= 1,..., M) formed between the M drive lines and a second sense line, so that a voltage +V is applied for an element of +1 in the code sequences and that a voltage -V is applied for an element of -1 in the code sequences, and thus (b) outputs outputs sFirst = (sll, si 2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column;

an estimation section that estimates, (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line ;

a sensor panel corresponding to the drive lines , the sense lines, the first capacitance column, and the second capacitance column, the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region;

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process,

the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to a touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and / or a touch signal generated by a finger.

Claim 2

A touch sensor system, comprising:

a sensor panel including (I) a first capacitance column Cli (i = 1,..., M) formed between M drive lines and a first sense line and (II) a second capacitance column C2i (i = 1,..., M) formed between the M drive lines and a second sense line; and

an integrated circuit for controlling the sensor panel, the integrated circuit including:

a drive section for (a) driving, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,··., M) which are orthogonal to one another and include elements each being either +1 or -1 and each of which has a length N, the M drive lines in parallel for each of (I) the first capacitance column Cli (i = 1,···, M) and (II) the second capacitance column C2i (i = 1,..., M) so that a voltage +V is applied for an element of + 1 in the code sequences and that a voltage -V is applied for an element of -1 in the code sequences, and thus (b) outpytting outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section for estimating (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line ,

the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region,

the integrated circuit further including:

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to the touch to the hand placing region, and

the remainder region touch signal includes a plot signal generated by a stylus and / or a touch signal generated by a finger.

Claim 3

An electronic device, comprising:

the touch sensor system recited in claim 2; and a display panel which either is placed on the sensor panel included in the touch sensor system or contains the sensor panel.

Claim 4

A touch sensor system, comprising:

a driving section that (a) drives, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which are orthogonal to one another and include elements each being either +1 or -1 and each of which has a length N, M drive lines in parallel for each of (I) a first capacitance column Cil (i = 1,..., M) formed between the M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line, and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section that estimates, (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a k l -th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2 -th drive line,

the driving section, for an element of + 1 in the code sequences, driving the drive lines at (i) a first voltage when the analog integrator is reset and (ii) a second voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled and, for an element of - 1 in the code sequences, driving the drive lines at (i) the second voltage when the analog integrator is reset and (ii) the first voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled,

the touch sensor system further comprising:

a sensor panel corresponding to the drive lines, the sense lines , the first capacitance column and the second capacitance column, the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region;

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to a touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and/ or a touch signal generated by a finger.

Claim 5

A touch sensor system, comprising:

a drive section that (a) drives, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which are orthogonal to one another and include elements each being either +1 or -1 and each of which has a length N, M drive lines in parallel for each of (I) a first capacitance column Cil (i = 1,..., M) formed between the M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line, and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, s!2,..., slN) from the first capacitance column and outputs sSecond = (s2 1 , s22 , ... , s2N) from the second capacitance column; and

an estimation section that estimates (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a k l -th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line,

the drive section, before outputting to the analog integrator the outputs sFirst and sSecond from the first and second capacitance columns, (a) driving, when the analog integrator is reset and when the outputs sFirst and sSecond from the first and second capacitance columns are sampled, the drive lines at a first voltage so that the outputs sFirst and sSecond from the first and second capacitance columns are outputted to the analog integrator, (b) reading out, from the analog integrator, the outputs sFirst and sSecond from the first and second capacitance columns as first offset outputs and second offset outputs, respectively, and (c) storing the first and second offset outputs in a memory,

the touch sensor system further comprising:

a sensor panel corresponding to the drive lines, the sense lines, the first capacitance column and the second capacitance column, the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region;

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region ; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process , the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to a touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and/ or a touch signal generated by a finger.

Claim 6

A touch sensor system, comprising:

a sensor panel including (I) a first capacitance column Cil (i = 1,..., M) formed between M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line; and

an integrated circuit for controlling the sensor panel, the integrated circuit including:

a drive section for (a) driving, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which are orthogonal to one another and include elements each being either +1 or -1 and each of which has a length N, the M drive lines in parallel for each of (I) the first capacitance column Cil (i = 1,..., M) and (II) the second capacitance column Ci2 (i = 1,..., M), and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section for estimating (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line,

the drive section, for an element of + 1 in the code sequences, driving the drive lines at (i) a first voltage when the analog integrator is reset and (ii) a second voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled and, for an element of - 1 in the code sequences, driving the drive lines at (i) the second voltage when the analog integrator is reset and (ii) the first voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled,

the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region,

the integrated circuit further including:

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region , the second process being different in kind from the first process , the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel;

the partial region touch signal being a hand placing region touch signal corresponding to the touch to the hand placing region, and

the remainder region touch signal includes a plot signal generated by a stylus and/or a touch signal generated by a finger.

Claim 7

A touch sensor system, comprising:

a sensor panel including (I) a first capacitance column Cil (i = 1,..., M) formed between M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line; and

an integrated circuit for controlling the sensor panel, the integrated circuit including:

a drive section for (a) driving, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which are orthogonal to one another and include elements each being either +1 or -1 and each of which has a length N, the M drive lines in parallel for each of (I) the first capacitance column Cil (i = 1,..., M) and (II) the second capacitance column Ci2 (i = 1,..., M), and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section for estimating (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a k l -th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line ,

the drive section, before outputting the outputs sFirst and sSecond from the first and second capacitance columns to the analog integrator, (a) driving, when the analog integrator is reset and when the outputs sFirst and sSecond from the first and second capacitance columns are sampled, the drive lines at a first voltage so that the outputs sFirst and sSecond from the first and second capacitance columns are outputted to the analog integrator, (b) reading out, from the analog integrator, the outputs sFirst and sSecond from the first and second capacitance columns as first offset outputs and second offset outputs , respectively, and (c) storing the first and second offset outputs in a memory,

the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region,

the integrated circuit further including:

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to the touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and / or a touch signal generated by a finger.

Claim 8

An electronic device, comprising:

the touch sensor system recited in claim 6 or 7; and a display panel which either is placed on the sensor panel included in the touch sensor system or contains the sensor panel.

Claim 9

A touch sensor system, comprising:

a driving section that (a) drives, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which include elements each being either +1 or -1 and each of which has a length N, M drive lines in parallel for each of (I) a first capacitance column Cli (i = 1,..., M) formed between the M drive lines and a first sense line and (II) a second capacitance column C2i (i = 1,..., M) formed between the M drive lines and a second sense line, so that a voltage +V is applied for an element of +1 in the code sequences and that a voltage -V is applied for an element of - 1 in the code sequences, and thus (b) outputs outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column;

an estimation section that estimates, (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line;

a sensor panel corresponding to the drive lines, the sense lines, the first capacitance column, and the second capacitance column, the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region;

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process,

the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to a touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and / or a touch signal generated by a finger.

Claim 10

A touch sensor system , comprising:

a sensor panel including (I) a first capacitance column C l i (i = 1 , . .. , M) formed between M drive lines and a first sense line and (II) a second capacitance column C2i (i = 1,..., M) formed between the M drive lines and a second sense line; and

an integrated circuit for controlling the sensor panel, the integrated circuit including:

a drive section for (a) driving, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which include elements each being either +1 or -1 and each of which has a length N, the M drive lines in parallel for each of (I) the first capacitance column Cli (i = 1,..., M) and (II) the second capacitance column C2i (i = 1,..., M) so that a voltage +V is applied for an element of +1 in the code sequences and that a voltage -V is applied for an element of -1 in the code sequences, and thus (b) outputting outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section for estimating (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line ,

the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region,

the integrated circuit further including:

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to the touch to the hand placing region, and

the remainder region touch signal includes a plot signal generated by a stylus and/ or a touch signal generated by a finger.

Claim 1 1

An electronic device, comprising:

the touch sensor system recited in claim 10; and

a display panel which either is placed on the sensor panel included in the touch sensor system or contains the sensor panel.

Claim 12

A touch sensor system, comprising:

a driving section that (a) drives, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which include elements each being either +1 or -1 and each of which has a length N, M drive lines in parallel for each of (I) a first capacitance column Cil (i = 1,..., M) formed between the M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line, and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and an estimation section that estimates, (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2 -th drive line ,

the driving section, for an element of + 1 in the code sequences, driving the drive lines at (i) a first voltage when the analog integrator is reset and (ii) a second voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled and, for an element of - 1 in the code sequences, driving the drive lines at (i) the second voltage when the analog integrator is reset and (ii) the first voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled,

the touch sensor system further comprising:

a sensor panel corresponding to the drive lines, the sense lines, the first capacitance column and the second capacitance column, the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region;

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to a touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and/or a touch signal generated by a finger.

Claim 13

A touch sensor system, comprising:

a drive section that (a) drives, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which include elements each being either +1 or -1 and each of which has a length N, M drive lines in parallel for each of (I) a first capacitance column Cil (i = 1,..., M) formed between the M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line, and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and an estimation section that estimates (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a k l -th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line ,

the drive section, before outputting to the analog integrator the outputs sFirst and sSecond from the first and second capacitance columns, (a) driving, when the analog integrator is reset and when the outputs sFirst and sSecond from the first and second capacitance columns are sampled, the drive lines at a first voltage so that the outputs sFirst and sSecond from the first and second capacitance columns are outputted to the analog integrator, (b) reading out, from the analog integrator, the outputs sFirst and sSecond from the first and second capacitance columns as first offset outputs and second offset outputs, respectively, and (c) storing the first and second offset outputs in a memory,

the touch sensor system further comprising:

a sensor panel corresponding to the drive lines, the sense lines , the first capacitance column and the second capacitance column, the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region;

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region , the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to a touch to the hand placing region, and .

the remainder region touch signal including a plot signal generated by a stylus and/ or a touch signal generated by a finger.

Claim 14

A touch sensor system, comprising:

a sensor panel including (I) a first capacitance column

Ci l (i = 1 , ... , M) formed between M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1 , ... , M) formed between the M drive lines and a second sense line; and

an integrated circuit for controlling the sensor panel, the integrated circuit including:

a drive section for (a) driving, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which include elements each being either +1 or -1 and each of which has a length N, the M drive lines in parallel for each of (I) the first capacitance column Cil (i = 1,..., M) and (II) the second capacitance column Ci2 (i = 1,..., M), and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section for estimating (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line,

the drive section, for an element of +1 in the code sequences, driving the drive lines at (i) a first voltage when the analog integrator is reset and (ii) a second voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled and, for an element of -1 in the code sequences, driving the drive lines at (i) the second voltage when the analog integrator is reset and (ii) the first voltage when the outputs sFirst and sSecond from the first and second capacitance columns are sampled,

the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region ,

the integrated circuit further including:

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel;

the partial region touch signal being a hand placing region touch signal corresponding to the touch to the hand placing region, and

the remainder region touch signal includes a plot signal generated by a stylus and/ or a touch signal generated by a finger.

Claim 15

A touch sensor system, comprising:

a sensor panel including (I) a first capacitance column Cil (i = 1,..., M) formed between M drive lines and a first sense line and (II) a second capacitance column Ci2 (i = 1,..., M) formed between the M drive lines and a second sense line; and

an integrated circuit for controlling the sensor panel, the integrated circuit including:

a drive section for (a) driving, on a basis of code sequences di (= dil, di2,..., diN, where i = 1,..., M) which include elements each being either +1 or -1 and each of which has a length N, the M drive lines in parallel for each of (I) the first capacitance column Cil (i = 1,..., M) and (II) the second capacitance column Ci2 (i = 1,..., M), and thus (b) outputting, to an analog integrator, outputs sFirst = (sll, sl2,..., slN) from the first capacitance column and outputs sSecond = (s21, s22,..., s2N) from the second capacitance column; and

an estimation section for estimating (a) on a basis of a first inner product operation of the outputs sFirst and the code sequences di, a first capacitance value in the first capacitance column which first capacitance value corresponds to a kl-th drive line and (b) on a basis of a second inner product operation of the outputs sSecond and the code sequences di, a second capacitance value in the second capacitance column which second capacitance value corresponds to a k2-th drive line ,

the drive section, before outputting the outputs sFirst and sSecond from the first and second capacitance columns to the analog integrator, (a) driving, when the analog integrator is reset and when the outputs sFirst and sSecond from the first and second capacitance columns are sampled, the drive lines at a first voltage so that the outputs sFirst and sSecond from the first and second capacitance columns are outputted to the analog integrator, (b) reading out, from the analog integrator, the outputs sFirst and sSecond from the first and second capacitance columns as first offset outputs and second offset outputs, respectively, and (c) storing the first and second offset outputs in a memory,

the sensor panel including a two-dimensional region including at least one partial region and a remainder region being a region other than the partial region ,

the integrated circuit further including:

first processing means for carrying out a first process in accordance with a partial region touch signal corresponding to a touch to the partial region; and

second processing means for carrying out a second process in accordance with a remainder region touch signal corresponding to a touch to the remainder region, the second process being different in kind from the first process, the at least one partial region being a hand placing region that includes a region where a hand is placed for input to the sensor panel,

the partial region touch signal being a hand placing region touch signal corresponding to the touch to the hand placing region, and

the remainder region touch signal including a plot signal generated by a stylus and / or a touch signal generated by a finger.

Claim 16

An electronic device, comprising:

the touch sensor system recited in claim 14 or 15 ; and a display panel which, either is placed on the sensor panel included in the touch sensor system or contains the sensor panel.