公开(公告)号：FR2687874B1

公开(公告)日：1997-01-31

申请号：FR9301242

申请日：1993-02-04

Applicant: MOTOROLA INC

Inventor： SCHELLINGER MICHAEL J ,  D AVELLO ROBERT F ,  KROLOPP ROBERT K

IPC: H04W88/06 ,  H04B7/26 ,  H04L12/16

公开(公告)号：IT1264308B1

公开(公告)日：1996-09-23

申请号：ITRM930023

申请日：1993-01-18

Applicant: MOTOROLA INC

Inventor： SCHELLINGER MICHAEL J ,  D AVELLO ROBERT F ,  KROLOPP ROBERT K

IPC: H04W88/06

公开(公告)号：GB2259431B

公开(公告)日：1995-06-14

申请号：GB9215558

申请日：1992-07-22

Applicant: MOTOROLA INC

Inventor： D AVELLO ROBERT F ,  JOGLEKAR MANOHAR A

IPC: H04W88/02 ,  H04Q7/32

Abstract: A communication system comprised of a transceiver (101) for transmitting and receiving data signals and a modulation/demodulation apparatus (102) to modulate the data signals from an accessory (109) for transmission and demodulate data signals after reception by the transceiver (101). A processing device (103) controls power to the various components of the communication system.

公开(公告)号：FR2687873A1

公开(公告)日：1993-08-27

申请号：FR9301241

申请日：1993-02-04

Applicant: MOTOROLA INC

Inventor： D AVELLO ROBERT F ,  KROLOPP ROBERT K SCHELLINGER M

IPC: H04B15/00 ,  H04W16/14 ,  H04W24/00 ,  H04W48/18 ,  H04W72/06 ,  H04W72/08 ,  H04W84/04 ,  H04W88/06

Abstract: A portable radiotelephone (101) cooperatively operates with a cordless base station (115) over the local coverage area using cellular frequency channels. Both the portable radiotelephone (101) and the cordless base station (115) scan the available channels to generate separate priority lists. The portable radiotelephone (101) and the cordless base station (115) categorize the available channels in its own priority list from best to worst. The priority list from both the portable radiotelephone (101) and the cordless base station (115) are combined to form a master priority list. The cordless telephone system then assigns the clearest available channel from the master priority list for use in the cordless telephone system. Thus, interference to and from the cellular system and other users of the cellular frequencies is minimized and the need for frequency planning is eliminated.

公开(公告)号：ITRM930064A1

公开(公告)日：1993-08-07

申请号：ITRM930064

申请日：1993-02-05

Applicant: MOTOROLA INC

Inventor： D AVELLO ROBERT F ,  KROLOPP ROBERT K ,  SCHELLINGER MICHAEL J

IPC: H04B7/26 ,  H04M20060101 ,  H04W36/14

公开(公告)号：ITRM930023A1

公开(公告)日：1993-08-07

申请号：ITRM930023

申请日：1993-01-18

Applicant: MOTOROLA INC

Inventor： D AVELLO ROBERT F ,  KROLOPP ROBERT K ,  SCHELLINGER MICHAEL J

IPC: H04N20060101 ,  H04W88/06

公开(公告)号：CA2105767A1

公开(公告)日：1993-08-07

申请号：CA2105767

申请日：1992-12-02

Applicant: MOTOROLA INC

Inventor： SCHELLINGER MICHAEL J ,  D AVELLO ROBERT F ,  KROLOPP ROBERT K

IPC: H04W88/06

公开(公告)号：CA2073823A1

公开(公告)日：1993-03-07

申请号：CA2073823

申请日：1992-07-14

Applicant: MOTOROLA INC

Inventor： D AVELLO ROBERT F ,  JOGLEKAR MANOHAR A

IPC: H04W88/02 ,  H04B1/00 ,  H04M3/44

Abstract: A communication system comprised of a transceiver (101) for transmitting and receiving data signals and a modulation/demodulation apparatus (102) to modulate the data signals from an accessory (109) for transmission and demodulate data signals after reception by the transceiver (101). A processing device (103) controls power to the various components of the communication system.

公开(公告)号：DE60332703D1

公开(公告)日：2010-07-08

申请号：DE60332703

申请日：2003-12-23

Applicant: MOTOROLA INC

Inventor： VAN BOSCH JAMES A ,  D AVELLO ROBERT F

IPC: H04L12/28 ,  H04B1/16 ,  H04W52/02

公开(公告)号：CA2561745A1

公开(公告)日：2005-10-27

申请号：CA2561745

申请日：2005-03-21

Applicant: MOTOROLA INC

Inventor： SOKOLA RAYMOND L ,  VAN BOSCH JAMES A ,  MEYERHOFF JEROME D ,  D AVELLO ROBERT F ,  GRIVAS NICK J ,  DAVIS SCOTT B ,  NEWELL MICHAEL A

IPC: H04B7/00 ,  G01C21/26 ,  H04W4/04 ,  H04W4/06 ,  H04W4/08

Abstract: A system and method for enabling communications in a wireless communications network (10) on the basis of user-specified locations or orientations, havin g particular utility to vehicle-based communications. Users of the network broadcast their locations and orientations (headings) to a central server (24). Using his user interface (51), a user can specify either a location or a heading and transmit the same to the server (24). The server (24) will query other system users to determine which correspond to the specified locations or orientations, and the requesting user is then permitted to contact such othe r users. With such functionality, a given user can, for example, be enabled to communicate with other users at or near his current location, at or near som e specified distant location, or that are traveling in the same direction as t he user.