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    System and method for efficiently charging a battery over a linear or nonlinear interface
    4.
    发明专利
    System and method for efficiently charging a battery over a linear or nonlinear interface 未知

    公开(公告)号：AU2465801A

    公开(公告)日：2001-07-09

    申请号：AU2465801

    申请日：2000-12-28

    Applicant: QUALCOMM INC

    Inventor： FITZGERALD JOSEPH R ,  WERNER DAVID E ,  SIMMONS EDMUND V

    IPC: H02J7/10 ,  H01M10/44 ,  H02J7/00

    Abstract: A system for charging a battery over a linear or nonlinear circuit. The system includes a first mechanism for receiving a feedback signal and providing a charging signal to the battery over a first electrical path when the feedback signal indicates that the battery is not fully charged. A second mechanism measures a voltage state of the battery via second and third electrical paths and provides the voltage state as the feedback signal to the first mechanism in response thereto. The voltage state accounts for voltage drops occurring over the circuit. In the specific embodiment, the first mechanism is a controllable power supply and the second mechanism is a sensing circuit. The sensing circuit includes a subtractor circuit that subtracts the voltage on the second electrical path from the voltage on the third electrical path and provides the feedback signal in response thereto. The second electrical path includes a wire connected between a first terminal of the subtractor circuit and a positive terminal of the battery. The second electrical path also includes a first sensing resistor connected between an output of the power supply and the first terminal of the subtractor circuit. The third electrical path includes a wire connected between a second terminal of the subtractor circuit and a negative terminal of the battery. The third electrical path also includes a second sensing resistor connected between a ground and the second terminal of the subtractor circuit.

    PIPELINED CELL SITE BASE STATION RECEIVER FOR A SPREAD SPECTRUM SIGNALS
    5.
    发明专利
    PIPELINED CELL SITE BASE STATION RECEIVER FOR A SPREAD SPECTRUM SIGNALS 未知

    公开(公告)号：CA2185444A1

    公开(公告)日：1996-07-18

    申请号：CA2185444

    申请日：1996-01-16

    Applicant: QUALCOMM INC

    Inventor： LEVIN JEFFREY A ,  WERNER DAVID E ,  EASTON KENNETH D

    IPC: H04B7/216 ,  H04B7/26 ,  H04L27/30 ,  H04W88/08 ,  H04B1/69 ,  H04Q7/30

    Abstract: An integrated modem (110) for use in a spread spectrum communications system. The modem includes in a demodulator front end (122) which despreads received multipath signals. A single transform engine (120), which operates on a time slice basis demodulates each despread multipath signal. The output of the transform processor engine (120) is provided to maximum detection circuitry (160) and a pipeline processor (126). Pipeline processor (126), which also operates on a time slice basis, combines and further processes the demodulated multipath signals to provide soft decision data for deinterleaving and error correction decoding in deinterleaver/decoder (130) to recover received data. The modem (110) further includes an encoder/interleaver (138), modulator (140) and transmit summer (142) for spread spectrum modulating data for transmission.

    SYSTEM AND METHOD FOR EFFICIENTLY CHARGING A BATTERY OVER A LINEAR OR NONLINEAR INTERFACE
    7.
    发明专利
    SYSTEM AND METHOD FOR EFFICIENTLY CHARGING A BATTERY OVER A LINEAR OR NONLINEAR INTERFACE 未知

    公开(公告)号：CA2393664C

    公开(公告)日：2008-01-08

    申请号：CA2393664

    申请日：2000-12-28

    Applicant: QUALCOMM INC

    Inventor： FITZGERALD JOSEPH R ,  SIMMONS EDMUND V ,  WERNER DAVID E

    IPC: H02J7/00 ,  H02J7/10 ,  H01M10/44

    Abstract: The system includes a first mechanism for receiving a feedback signal and providing a charging signal to the battery over a first electrical path when the feedback signal indicates that the battery is not fully charged. A second mechanism measures a voltage state of the battery via second and third electrical paths and provides the voltage state as the feedback signal to the first mechanism in response thereto. In the specific embodiment, the first mechani sm is a controllable power supply and the second mechanism is a sensing circuit. The sensing circuit includes a subtractor circuit that subtracts the voltage on the second electrical path from the voltage on the third electrical path and provides the feedback signal in response thereto. The second electrical path includes a wire connected between a first terminal of the subtractor circuit and a positive terminal of the battery.

    SISTEMA Y METODO PARA CARGAR, EFICIENTEMENTE UNA BATERIA SOBRE UNA INTERCONEXION LINEAL O NO LINEAL.
    9.
    发明专利
    SISTEMA Y METODO PARA CARGAR, EFICIENTEMENTE UNA BATERIA SOBRE UNA INTERCONEXION LINEAL O NO LINEAL. 未知

    公开(公告)号：MXPA02006412A

    公开(公告)日：2003-02-12

    申请号：MXPA02006412

    申请日：2000-12-28

    Applicant: QUALCOMM INC

    Inventor： WERNER DAVID E

    IPC: H02J7/10 ,  H01M10/44 ,  H02J7/00

    Abstract: El sistema incluye un primer mecanismo para recibir una senal de retroalimentacion y proporcionar una senal de carga a la bateria sobre una primera trayectoria electrica cuando la senal de retroalimentacion indica que la bateria no esta completamente cargada. Un segundo mecanismo mide un estado de voltaje de la bateria via segunda y tercera trayectorias electricas y proporciona el estado de voltaje como senal de retroalimentacion al primer mecanismo en respuesta a esto. En la modalidad especifica, el primer mecanismo, es un suministro de energia controlable y el segundo mecanismo es un circuito de deteccion. El circuito de deteccion incluye un circuito sustractor que sustrae el voltaje sobre la segunda trayectoria electrica del voltaje sobre la tercera trayectoria electrica y proporciona la senal de retroalimentacion en respuesta a esto. La segunda trayectoria electrica incluye un alambre conectado entre una primera terminal del circuito sustractor y una terminal positiva de la bateria.

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