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1. (US20140062896) Electronic device with adaptive proximity sensor threshold

Office : United States of America
Application Number: 13599664 Application Date: 30.08.2012
Publication Number: 20140062896 Publication Date: 06.03.2014
Grant Number: 09411048 Grant Date: 09.08.2016
Publication Kind : B2
IPC:
G06F 1/32
G01S 17/02
H04M 1/725
G01S 7/48
H04W 52/02
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
1
Details not covered by groups G06F3/-G06F13/82
26
Power supply means, e.g. regulation thereof
32
Means for saving power
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02
Systems using the reflection of electromagnetic waves other than radio waves
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
72
Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
725
Cordless telephones
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
48
of systems according to group G01S17/58
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
52
Power management, e.g. TPC [Transmission Power Control], power saving or power classes
02
Power saving arrangements
Applicants: William Matthew Vieta
Apple Inc.
Inventors: William Matthew Vieta
Agents: Treyz Law Group, P.C.
G. Victor Treyz
Joseph F. Guihan
Priority Data:
Title: (EN) Electronic device with adaptive proximity sensor threshold
Abstract: front page image
(EN)

An electronic device may be provided with electronic components such as a touch screen display. The touch screen display may be controlled based on information from a proximity sensor. The proximity sensor may have a light source that emits infrared light and a light detector that detects reflected infrared light. When the electronic device is in the vicinity of a user's head, the proximity sensor may produce data indicative of the presence of the user's head. Variations in proximity sensor output due to user hair color and smudges on the proximity sensor can be accommodated by using a dynamically adjustable proximity sensor data threshold in processing proximity sensor data. Proximity sensor data may be analyzed in real time to detect signal strength fluctuations that are indicative of the presence of low-reflectively dark hair on the user's head. Threshold adjustments may be based on the presence of dark hair.