公开(公告)号：HK9197A

公开(公告)日：1997-01-31

申请号：HK9197

申请日：1997-01-23

Applicant: MOTOROLA INC

Inventor： MACNAK PHILIP PAUL ,  IRWIN JAMES STUART ,  DAVIS WALTER LEE

IPC: H04L27/00 ,  H01Q1/27 ,  H03J7/02 ,  H04B1/18 ,  H04B7/26 ,  H04Q7/14 ,  H04Q7/38

Abstract: PCT No. PCT/US87/00002 Sec. 371 Date Feb. 27, 1987 Sec. 102(e) Date Feb. 27, 1987 PCT Filed Jan. 2, 1987 PCT Pub. No. WO88/05214 PCT Pub. Date Jul. 14, 1988.An antenna tuning apparatus for a portable communications device which includes a means of adapting the device to be worn on the body is described. The device consists of an antenna, tuning means and a receiver for receiving transmitted signals including a tuning mode signal. A decoder initiates antenna tuning when the tuning mode signal is detected. A tuning controller enables a carrier detection circuit to determine the magnitude of the received signals, and generates a tuning control signal supplied to a D/A converter to effect tuning of the antenna by monitoring the variations in the magnitude of the received signals.

公开(公告)号：CZ9501336A3

公开(公告)日：1997-01-15

申请号：CZ133695

申请日：1993-11-23

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B5/00 ,  H04W84/02 ,  H04B7/26

CPC classification number: H04W84/022

公开(公告)号：CA2066712C

公开(公告)日：1996-09-24

申请号：CA2066712

申请日：1990-10-01

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE ,  MACNAK PHILIP PAUL

IPC: H04B7/185 ,  H04W84/02 ,  H04Q7/08

Abstract: A global communications system is described having terrestrial transmitters (1108) for transmitting coded message signals in each of a plurality of geographic areas (1102, 1104, 1106). The global communication system further includes at least one satellite transmitter (1114) for transmitting the coded messages signals in each of a plurality of global geographic areas. The coded message signals transmissions include channel identification codewords identifying the terrestrial channels and the satellite channel. The terrestrial channel is selected for operation when the channel identification codeword received matches a first predetermined channel identification codeword. The satellite channel is selected for operation when the channel identification codeword does not match a second predetermined channel identification codeword. The terrestrial channel is periodically reselected when the channel identification codeword received on the satellite channel matches the second predetermined channel identification codeword.

公开(公告)号：IN176548B

公开(公告)日：1996-07-13

申请号：IN85DE1990

申请日：1990-01-31

Applicant: MOTOROLA INC

Inventor： ERHART RICHARD ALEXANDER ,  DAVIS WALTER LEE ,  HEROLD BARRY WAYNE

IPC: H04B5/00

公开(公告)号：HUT73111A

公开(公告)日：1996-06-28

申请号：HU9501549

申请日：1993-11-24

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B7/26 ,  H04M11/00 ,  H04M11/02 ,  H04W88/18

Abstract: A combination radio paging receiver and radio telephone (40) includes a receiver (214) for receiving paging signals provided from a paging terminal (32), a decoder (216) for decoding the paging sgnals to recover a page, and a controller (220) for determining whether the page requests an acknowledge back signal. A radio telephone section (205) couples the controller (220) to a radio telephone system (15) to form a radio telephone link with the paging terminal (32) for communicating the acknowledge back signal to the paging terminal (32) via the radio telephone link in response to determining that the page requests the acknowledge back signal (304).

公开(公告)号：HU9501551D0

公开(公告)日：1995-07-28

申请号：HU9501551

申请日：1993-11-23

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B5/00 ,  H04W84/02

Abstract: A cooperative paging system (10) and radio telephone system (15) combine to provide conventional delivery of short paging messages to a combination pager/radio telephone (40) via a first communication path, while a radio telephone link operating at a higher data rate is used to deliver large data messages to the pager/radio telephone (40). The radio telephone link is formed by a transceiver section (205) of the pager/radio telephone (40) coupling to a radio telephone base station (50,52) and calling up a paging terminal (32) of the paging system (10). The paging terminal (32) retrieves the large data messages from a temporary message memory (42) to deliver to the pager/radio telephone (40).

公开(公告)号：FI952618A

公开(公告)日：1995-07-12

申请号：FI952618

申请日：1995-05-29

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B7/26 ,  H04M11/00 ,  H04M11/02 ,  H04W88/18 ,  H04Q

Abstract: A combination radio paging receiver and radio telephone (40) includes a receiver (214) for receiving paging signals provided from a paging terminal (32), a decoder (216) for decoding the paging sgnals to recover a page, and a controller (220) for determining whether the page requests an acknowledge back signal. A radio telephone section (205) couples the controller (220) to a radio telephone system (15) to form a radio telephone link with the paging terminal (32) for communicating the acknowledge back signal to the paging terminal (32) via the radio telephone link in response to determining that the page requests the acknowledge back signal (304).

公开(公告)号：NO952095L

公开(公告)日：1995-07-10

申请号：NO952095

申请日：1995-05-26

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B7/26 ,  H04M11/00 ,  H04M11/02 ,  H04W88/18 ,  H04Q7/12

Abstract: A combination radio paging receiver and radio telephone (40) includes a receiver (214) for receiving paging signals provided from a paging terminal (32), a decoder (216) for decoding the paging sgnals to recover a page, and a controller (220) for determining whether the page requests an acknowledge back signal. A radio telephone section (205) couples the controller (220) to a radio telephone system (15) to form a radio telephone link with the paging terminal (32) for communicating the acknowledge back signal to the paging terminal (32) via the radio telephone link in response to determining that the page requests the acknowledge back signal (304).

公开(公告)号：NO177170B

公开(公告)日：1995-04-18

申请号：NO911997

申请日：1991-05-24

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B20060101 ,  H04W52/02 ,  H04B1/16 ,  H04W88/02

Abstract: A receiver (70) receives a transmitted signal having a periodic predetermined signal, a method and apparatus (99) detects a first predetermined signal. Power may be conserved during a portion of a subsequent predetermined signal. The subsequent predetermined signal is divided into at least a first and second portion. If the first portion is detected, the subsequent predetermined signal is considered detected and power is conserved for the second portion. If the first portion is not detected, the receiver remains active for the second portion in order to detect the subsequent predetermined signal.

公开(公告)号：FI950933A0

公开(公告)日：1995-03-01

申请号：FI950933

申请日：1995-03-01

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER LEE

IPC: H04B1/10 ,  H04B15/04 ,  H04Q7/14 ,  H04B

Abstract: A radio receiver (40) for receiving an RF signal comprises receiving circuitry (42) for receiving and demodulating the RF signal and a microcomputer (44) coupled to the receiving circuitry (42) for enabling and disabling the receiving circuitry (42) at predetermined times. The radio receiver (40) further comprises an expansion chip (68) coupled to and controlled by the microcomputer (44) for communicating therewith to further process the RF signal. Communication between the microcomputer (44) and the expansion chip (68) occurs at a first speed when the receiving circuitry (42) is enabled and at a second speed faster than the first speed when the receiving circuitry (42) is disabled.