-
公开(公告)号：BR9504135A
公开(公告)日：1996-07-30
申请号：BR9504135
申请日：1995-09-22
Applicant: MOTOROLA INC
Inventor： WEIGAND DAVID L , MALEK CHARLES J
Abstract: An apparatus and method provides synchronous communication in a communication environment (102) wherein multiple base stations are adapted to operate on the same frequencies. In particular, the base stations which operate within range of one another must be coordinated to minimize interference with other base stations which may otherwise operate independently. Each base station operating in a system will determine whether another base station operating on the same frequencies is within range (310). One of the base stations will assume a role as a master and the remaining base station will then synchronize to the master base station (312). The preferred methods for synchronizing the base stations includes signaling protocols (702, 902) and collision avoidance techniques for digital multiple access communication systems.
-
公开(公告)号：CA2142613A1
公开(公告)日：1995-02-02
申请号：CA2142613
申请日：1994-06-13
Applicant: MOTOROLA INC
Inventor： GOEDKEN JAMES F , PERSZYK THOMAS , MALEK CHARLES J
Abstract: A METHOD FOR OPERATING A COMMUNICATION SYSTEM HAVING MULTIPLE BASE STATIONS The present invention encompasses a method for establishing and maintaining communication in a portable telephone system adapted to operate with a plurality of base stations and at least one handset on a plurality of channels. The method generally includes steps of assigning a security code to the handset(s) operating in the portable communication system to enable RF communication between the handset(s) and the plurality of base stations (24); communicating the security code assigned to the handset(s) to the plurality of base stations to maintain within each of the plurality of base stations the security code(s) of the handset(s) operating in the system (26); and aligning the channel of the handset(s) with a channel of a base station to allow for communication between each handset and one of the plurality of base stations (28).
-
公开(公告)号：CA1264355A
公开(公告)日：1990-01-09
申请号：CA541117
申请日：1987-07-02
Applicant: MOTOROLA INC
Inventor： MALEK CHARLES J
Abstract: CM00290H GATEWAY SYSTEM AND METHOD FOR INTERCONNECTING TELEPHONE CALLS WITH A DIGITAL VOICE PROTECTED RADIO NETWORK A Gateway apparatus and method is disclosed which permits secure, end-to-end communications to exchange automatically between predetermined authorized subscribers operating on a radio network and a telephone network. The Gateway determines whether clear or coded message signals are to be routed from one network to another without utilizing an intervening decryption and encryption to accomplish the interconnection. The Gateway includes a radio network interface, a telephone network interface, a signal processor, and a supervisory controller. A Remote Interface at the location of the predetermined telephone subscriber is utilized to adapt a conventional telephone for clear and coded modes of operation. Moreover, an alternate embodiment is disclosed which permits two radio networks to be interconnected via the telephone network by utilizing two Gateways.
-
公开(公告)号：FR2725086B1
公开(公告)日：1999-12-31
申请号：FR9510895
申请日：1995-09-18
Applicant: MOTOROLA INC
Inventor： MALEK CHARLES J , WEIGAND DAVID L
Abstract: A method and apparatus increases spectrum efficiency in a wireless communication system having base stations which may be positioned to operate within range of one another. The method and apparatus eliminates the requirement for a base station to periodically transmit to maintain synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508). The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication. Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).
-
公开(公告)号：BR9405562A
公开(公告)日：1999-09-08
申请号：BR9405562
申请日：1994-07-15
Applicant: MOTOROLA INC
Inventor： GOEDKEN JAMES F , MALEK CHARLES J
IPC: H04M1/27 , H04M1/2745 , H04M1/274
Abstract: A method provide delays during memory dialing by automatically inserting pause characters within the dialing sequence based upon the user's entry of the dialing sequence. The method establishes a time-out period (64) when storing dialing sequences, and adds a pause character (66) to the dialing sequence if the time-out has expired. The method also determines whether any digit keys have been selected (68) to be stored in the sequence. Finally, the method monitors the tip and ring line of a standard telephone line to detect a far end ringing signal (76) and insert a special pause character (78). The special pause character will provide a delay until a far end pickup is detected during automatic dialing. Also, a circuit includes a keypad (20) for selecting digits to be stored; a control circuit (18) for detecting a delay between the selection of digits and generating a first pause signal in response; and a digital signal processor (30) for detecting a far end ringing signal to generate a second pause signal; and a memory device (26) for storing said digits and pause signals.
-
Patent Agency Ranking
公开(公告)号：SE9503285D0
公开(公告)日：1995-09-22
申请号：SE9503285
申请日：1995-09-22
Applicant: MOTOROLA INC
Inventor： MALEK CHARLES J , WEIGAND DAVID L
Abstract: A method and apparatus increases spectrum efficiency in a wireless communication system having base stations which may be positioned to operate within range of one another. The method and apparatus eliminates the requirement for a base station to periodically transmit to maintain synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508). The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication. Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).
-
公开(公告)号：MX9504036A
公开(公告)日：1998-12-31
申请号：MX9504036
申请日：1995-09-21
Applicant: MOTOROLA INC
Inventor： WEIGAND DAVID L , MALEK CHARLES J
Abstract: Un aparato y método proporciona una comunicacion sincronica en un entorno de comunicacion (102) donde las estaciones base multiples se adaptan para operar en las mismas frecuencias. En particular, las estaciones base que operan dentro del rango entre ellas deben estar coordinadas para minimizar la interferencia con otras estaciones base que pueden de otro modo operar independientemente. Cada estacion base opera en un sistema determinará si otra estacion base que opera en las mismas frecuencias está dentro del rango (310). Una de las estaciones base asumirá un rol como patron y la estacion base restante luego se sincronizará con la estacion base patron (312). Los métodos preferidos para sincronizar las estaciones base incluyen la señalizacion de protocolos (702, 902) y las técnicas para evitar la colision para los sistemas de comunicacion de acceso multiple digital.
-
公开(公告)号：FR2725088A1
公开(公告)日：1996-03-29
申请号：FR9510896
申请日：1995-09-18
Applicant: MOTOROLA INC
Inventor： WEIGAND DAVID L , MALEK CHARLES J
Abstract: An apparatus and method provides synchronous communication in a communication environment (102) wherein multiple base stations are adapted to operate on the same frequencies. In particular, the base stations which operate within range of one another must be coordinated to minimize interference with other base stations which may otherwise operate independently. Each base station operating in a system will determine whether another base station operating on the same frequencies is within range (310). One of the base stations will assume a role as a master and the remaining base station will then synchronize to the master base station (312). The preferred methods for synchronizing the base stations includes signaling protocols (702, 902) and collision avoidance techniques for digital multiple access communication systems.
-
公开(公告)号：DE19533954A1
公开(公告)日：1996-03-28
申请号：DE19533954
申请日：1995-09-13
Applicant: MOTOROLA INC
Inventor： MALEK CHARLES J , WEIGAND DAVID L
Abstract: A method and apparatus increases spectrum efficiency in a wireless communication system having base stations which may be positioned to operate within range of one another. The method and apparatus eliminates the requirement for a base station to periodically transmit to maintain synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508). The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication. Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).
-
公开(公告)号：SE9503285L
公开(公告)日：1996-03-24
申请号：SE9503285
申请日：1995-09-22
Applicant: MOTOROLA INC
Inventor： MALEK CHARLES J , WEIGAND DAVID L
Abstract: A method and apparatus increases spectrum efficiency in a wireless communication system having base stations which may be positioned to operate within range of one another. The method and apparatus eliminates the requirement for a base station to periodically transmit to maintain synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508). The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication. Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.021 seconds)
