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1. (WO1991009485) MICROPHONE-CONTROLLER WITH MULTIFUNCTION, SINGLE CONDUCTOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009485 International Application No.: PCT/US1990/007432
Publication Date: 27.06.1991 International Filing Date: 17.12.1990
IPC:
H04M 1/00 (2006.01) ,H04B 7/26 (2006.01) ,H04M 1/60 (2006.01) ,H04M 11/00 (2006.01) ,H04W 88/02 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
24
for communication between two or more posts
26
at least one of which is mobile
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
60
including speech amplifiers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
11
Telephonic communication systems specially adapted for combination with other electrical systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
88
Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
02
Terminal devices
Applicants:
MOTOROLA, INC. [US/US]; 1303 East Algonquin Road Schaumburg, IL 60196, US
Inventors:
KOWALSKI, Joseph, L.; US
ROKUSEK, Daniel, S.; US
Agent:
PARMELEE, Steven, G. ; Motorola, Inc. Intellectual Property Dept. 1303 East Algonquin Road Schaumburg, IL 60196, US
Priority Data:
453,87720.12.1989US
Title (EN) MICROPHONE-CONTROLLER WITH MULTIFUNCTION, SINGLE CONDUCTOR
(FR) CONTROLEUR DE MICROPHONE A CONDUCTEUR MULTIFONCTIONS INDIVIDUEL
Abstract:
(EN) The single power conductor carries audio and a serial data bus. The microphone's amplifier is connected to the conductor (108). The incoming audio signal rides on the DC supply voltage from the radiotelephone. The supply voltage, through a voltage regulator (103), supplies power to the amplifier and a microprocessor (105), used to transmit the serial data message on the conductor (108). Both the amplifier and the voltage regulator (103) are isolated from the power conductor (108) by a FET switch (104) that is controlled by the microprocessor (105). The switch (104) is turned off, isolating the circuitry when the microprocessor (105) is transmitting.
(FR) Le conducteur de puissance individuel porte un signal audio et fait office de bus de données en série. L'amplificateur du microphone est connecté au conducteur (108). Le signal audio entrant passe dans la tension de secteur de courant continu provenant du radiotéléphone. La tension de secteur, par l'intermédiaire d'un régulateur de tension (103), alimente l'amplificateur et un microprocesseur (105) utilisé pour transmettre le message de données en série dans le conducteur (108). A la fois l'amplificateur et le régulateur de tension (103) sont isolés du conducteur de puissance (108) par un commutateur à transistor à effet de champ (104), lequel est commandé par le microprocesseur (105). Le commutateur (104) est mis en position d'arrêt, isolant le circuit lorsque le micro-processeur (105) effectue une transmission.
Designated States: AU, BR, CA, FI, JP, KR, NO
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CA2042040KR1019920702135AU1991071599