公开(公告)号：BG62308B1

公开(公告)日：1999-07-30

申请号：BG9974695

申请日：1995-06-26

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L

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

Abstract: The system is combination of a radio receiver based onpersonal call and radio telephone (40). It includes a receiver(21) of signals for personal calling supplied by a terminal forpersonal calling (paging) (32), decoder (216) of the signals,restoring the paging message, and controller (220) determiningwhether the paging message requires a back confirmation signal.The radio telephone tract (205) connects the controller (220) to aradio telephone system (15) in order to establish radio telephoneconnection to the terminal for personal calling (32) fortransmitting a back confirmation signal to the terminal forpersonal calling (32) by the radio telephone connection when it isestablished that the paging message requires a back confirmationsignal (30).10 claims

公开(公告)号：PL173961B1

公开(公告)日：1998-05-29

申请号：PL30756394

申请日：1994-05-31

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L

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

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.

公开(公告)号：CZ283126B6

公开(公告)日：1998-01-14

申请号：CS217793

申请日：1992-02-26

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L ,  MACNAK PHILIP P

IPC: H04B7/185 ,  H04W84/02 ,  H04B7/14

公开(公告)号：BG99746A

公开(公告)日：1995-12-29

申请号：BG9974695

申请日：1995-06-26

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L

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：CA2065317C

公开(公告)日：1995-03-21

申请号：CA2065317

申请日：1990-09-12

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L ,  MACNAK PHILIP P

IPC: H04B7/15 ,  H04B20060101 ,  H04B7/185 ,  H04L29/06 ,  H04W84/02

Abstract: A satellite paging system is described for providing geographic protocol conversion for data packet delivery to communication receivers (826) located in a plurality of geographic areas (14). The system includes a transmitter (16) for transmitting data packets formatted in a first predetermined data format to the communication satellite (12). The satellite (12) includes a receiver (808) for receiving the data packets and a programmable encoder (822) coupled to the receiver for encoding the received data packets into encoded data packets in a second predetermined data format corresponding to the signalling requirements of each geographic delivery area. A satellite transmitter (824) coupled to the programmable encoder (822) then transmits the encoded data packets in the second predetermined data format to a portable communication receiver (826), operable in the second predetermined data format in the geographic delivery area (14).

公开(公告)号：CA2053294C

公开(公告)日：1995-01-10

申请号：CA2053294

申请日：1990-05-29

Applicant: MOTOROLA INC

Inventor： MITTEL JAMES G ,  DAVIS WALTER L

IPC: H04L25/06 ,  H04W52/02 ,  H04W88/02 ,  H04B1/16 ,  H04Q7/00

Abstract: 2053294 9016133 PCTABS00003 A battery saver type paging receiver (fig. 2) includes an improved peak and valley amplitude detection type data limiter section (fig. 3) with mode control operational thereof, digital word storage (50, 52) of acquired peak and valley amplitude values, and self tuning capabilities (56). More specifically, the data limiter section includes a controller (56) for controlling the peak and valley detection circuits (32, 34) to acquire respective peak and valley amplitude values in digital word form in a first operational mode (132, fig. 5) and to hold the peak and valley amplitude digital words in corresponding storage registers in a second operational mode (134). The controller may transfer the data limiter section into a third operational mode (136) during which the peak and valley digital words may be altered a predetermined count to effect a self-tuning thereof. In one embodiment, the third mode of operation is effected during the transfer between the second and first modes of operation.

公开(公告)号：FI92768B

公开(公告)日：1994-09-15

申请号：FI852293

申请日：1985-06-07

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L ,  HEROLD BARRY W ,  LITTLE WENDELL

IPC: G06F1/00 ,  G06F1/04 ,  G06F1/08 ,  G06F1/32 ,  G06F15/78 ,  H03L7/089 ,  H03L7/107 ,  H03L7/183 ,  G06F7/68

Abstract: A microcomputer (104) having predetermined clock pulse frequency requirements receives pulses from a multiplying type frequency synthesizer (200) which utilizes a reference frequency less than the largest of the predetermined requirements. The synthesizer (200) is responsive to program instructions to generate clock pulse frequencies sufficient to satisfy the requirement for immediate execution of programmed tasks. As the execution requirements change, the synthesizer (200) responds to provide only the frequency required. Thus, the power dissipated by the entire microcomputer system is minimized.

公开(公告)号：CZ217793A3

公开(公告)日：1994-03-16

申请号：CS217793

申请日：1992-02-26

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L ,  MACNAK PHILIP P

IPC: H04B7/185 ,  H04W84/02

公开(公告)号：CA2077344A1

公开(公告)日：1991-10-31

申请号：CA2077344

申请日：1991-02-11

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L

IPC: G08B15/00 ,  G08B3/10 ,  G08B25/10 ,  H04W88/02

公开(公告)号：CA2066712A1

公开(公告)日：1991-05-04

申请号：CA2066712

申请日：1990-10-01

Applicant: MOTOROLA INC

Inventor： DAVIS WALTER L ,  MACNAK PHILIP P

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

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.