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    Increasing amplifier efficiency using variable bias
    1.
    发明专利
    Increasing amplifier efficiency using variable bias 未知

    公开(公告)号：GB2294833A

    公开(公告)日：1996-05-08

    申请号：GB9522038

    申请日：1995-10-26

    Applicant: MOTOROLA INC

    Inventor： ALBERTH JR WILLIAM P ,  JANSSEN JOHN ,  KLOMSDORF ARMIN

    IPC: H03G3/30 ,  H03F1/02 ,  H03F3/189 ,  H03F3/24 ,  H03G3/00 ,  H04B1/04

    Abstract: A transmitter (107) includes amplifying circuitry (203) and control circuitry (215, 217, 219) for biasing the amplifying circuitry (203) so that it operates closer to saturation with increased efficiency. The gate voltage signal (213), which provides a gate bias, is coupled to the amplifying circuitry (203) and is dynamically varied by the processor circuitry (219) in response to the value of the amplifier control voltage (211) coupled to the amplifying circuitry (203). The amplifier control voltage (211), which has a value for maintaining the output power of the amplifying circuitry (203) at a constant, is produced by the integrating circuitry (217) in response to a comparison of the detected power output signal (216) produced by the detecting circuitry (215) and the power output control signal (218) produced by the processor circuitry (219). Efficiency is realized by dynamically varying the gate voltage signal (213) to its largest magnitude so that the amplifying circuitry (203) may operate as close to saturation as possible while still maintaining a constant output power.

    2.
    发明专利
    未知

    公开(公告)号：DE602005010745D1

    公开(公告)日：2008-12-11

    申请号：DE602005010745

    申请日：2005-11-03

    Applicant: MOTOROLA INC

    Inventor： ALBERTH JR WILLIAM P ,  BALASURIYA SENAKA ,  BI HAO ,  NARASIMHA MURALI

    IPC: H04L12/56 ,  H04L12/28

    Abstract: This coordinated floor and packet scheduling for Push-to-X over Cellular (PoC) services delays a packet data slot assignment until after a PoC floor has been granted ( 272 ) by a PoC server ( 251 ). By reducing the time period between slot assignment and floor grant, this method reduces the wasting of packet data network resources while the communication device ( 211 ) is waiting for a PoC floor grant. Setting up a Push-to-X over Cellular (PoC) call session includes an originating communication device ( 211 ) transmitting a PoC floor request message ( 270 ) to a PoC server ( 251 ), the PoC server ( 251 ) sending a PoC floor grant message ( 272 ) with treatment type "floor grant" to a packet control function, ( 232 ), the packet control function ( 232 ) assigning packet data slots to the originating communication device and setting up an active packet data session ( 280 ), and communicating a PoC floor grant and packet data slot assignment message ( 285 ) to the originating communication device ( 211 ).

    6.
    发明专利
    未知

    公开(公告)号：AT413045T

    公开(公告)日：2008-11-15

    申请号：AT05824922

    申请日：2005-11-03

    Applicant: MOTOROLA INC

    Inventor： ALBERTH JR WILLIAM P ,  BALASURIYA SENAKA ,  BI HAO ,  NARASIMHA MURALI

    IPC: H04L12/56 ,  H04L12/28

    Abstract: This coordinated floor and packet scheduling for Push-to-X over Cellular (PoC) services delays a packet data slot assignment until after a PoC floor has been granted ( 272 ) by a PoC server ( 251 ). By reducing the time period between slot assignment and floor grant, this method reduces the wasting of packet data network resources while the communication device ( 211 ) is waiting for a PoC floor grant. Setting up a Push-to-X over Cellular (PoC) call session includes an originating communication device ( 211 ) transmitting a PoC floor request message ( 270 ) to a PoC server ( 251 ), the PoC server ( 251 ) sending a PoC floor grant message ( 272 ) with treatment type "floor grant" to a packet control function, ( 232 ), the packet control function ( 232 ) assigning packet data slots to the originating communication device and setting up an active packet data session ( 280 ), and communicating a PoC floor grant and packet data slot assignment message ( 285 ) to the originating communication device ( 211 ).

    Aural annunciator circuit for a receiver
    7.
    发明专利
    Aural annunciator circuit for a receiver 未知

    公开(公告)号：GB2277851A

    公开(公告)日：1994-11-09

    申请号：GB9413969

    申请日：1993-10-29

    Applicant: MOTOROLA INC

    Inventor： DEMURO DAVID M ,  TRANDAI TONY A ,  ALBERTH JR WILLIAM P

    IPC: H04M1/725 ,  H04M1/00 ,  H04M11/02 ,  H04M19/04 ,  H04Q7/32 ,  H04Q7/38 ,  H04B1/16

    Abstract: An aural annunciator circuit for a radio receiver and a radio transmitter incorporating such. The annunciator circuit is operative to generate an aural signal when a signal is transmitted to the receiver in a manner analogous to telephonic ringer circuitry of conventional telephonic apparatus (606). The aural signal is of a signal level of a relatively high magnitude when the receiver in which the aural annunciator circuit is embodied is configured in a closed configuration and the aural signal is of a relatively low magnitude when the receiver is configured in an open configuration (618).

    Charge regulator for electronic device and associated method
    8.
    发明专利
    Charge regulator for electronic device and associated method 未知

    公开(公告)号：GB2288700A

    公开(公告)日：1995-10-25

    申请号：GB9509097

    申请日：1994-08-23

    Applicant: MOTOROLA INC

    Inventor： ALBERTH JR WILLIAM P ,  KAMKE JAMES F ,  DEMURO DAVID MARK

    IPC: H02J7/34 ,  H01M10/44 ,  H02J7/00 ,  H02J9/06 ,  H04B1/38

    Abstract: An electronic device, such as a radiotelephone, is connectable to a variable-level power source (106). The electronic device includes a rechargeable power source (188) which is repowered responsive to application of operative power generated by the variable-level power source (106). The electronic device provides a constant charge current regulator (168) for converting operative power of a constant voltage into operative power of a constant current to be applied to the rechargeable power source (188) to recharge the rechargeable power source (188). The constant charge current regulator (168) is made of a series connected diode (176) and resistor pair (172). According to a further aspect of the invention, when the rechargeable power source becomes fully recharged, application of the operative power can be reduced by switching (206).

    9.
    发明专利
    未知

    公开(公告)号：BRPI0808994A2

    公开(公告)日：2014-11-11

    申请号：BRPI0808994

    申请日：2008-01-21

    Applicant: MOTOROLA INC

    Inventor： ALBERTH JR WILLIAM P

    IPC: G09G3/20

    Abstract: A visual interface having a plurality of picture elements disposed on a substrate wherein a viewable display area of the visual interface may be configured by expanding or contracting the substrate in at least one dimension, and a characteristic of the visual interface is controlled based on the configuration of the viewable display area.

    Charge regulator for electronic device
    10.
    发明专利
    Charge regulator for electronic device 未知

    公开(公告)号：GB2288700B

    公开(公告)日：1998-04-08

    申请号：GB9509097

    申请日：1994-08-23

    Applicant: MOTOROLA INC

    Inventor： ALBERTH JR WILLIAM P ,  KAMKE JAMES F ,  DEMURO DAVID MARK

    IPC: H02J7/34 ,  H01M10/44 ,  H02J7/00 ,  H02J9/06 ,  H04B1/38

    Abstract: An electronic device, such as a radiotelephone, is connectable to a variable-level power source (106). The electronic device includes a rechargeable power source (188) which is repowered responsive to application of operative power generated by the variable-level power source (106). The electronic device provides a constant charge current regulator (168) for converting operative power of a constant voltage into operative power of a constant current to be applied to the rechargeable power source (188) to recharge the rechargeable power source (188). The constant charge current regulator (168) is made of a series connected diode (176) and resistor pair (172). According to a further aspect of the invention, when the rechargeable power source becomes fully recharged, application of the operative power can be reduced by switching (206).

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