公开(公告)号：CA2188446A1

公开(公告)日：1995-11-09

申请号：CA2188446

申请日：1995-04-28

Applicant: QUALCOMM INC

Inventor： PETERZELL PAUL E ,  WILSON NATHANIEL B ,  BLACK PETER J

IPC: H03G3/20 ,  H03G3/30 ,  H04B1/16 ,  H04B1/18 ,  H04L27/22 ,  H04L27/38 ,  H04L1/20

Abstract: An automatic gain control (AGC) apparatus for a digital receiver is disclosed herein. The AGC apparatus includes an adjustable gain amplifier (18) having an input port for receiving an input signal, a control port for receiving a gain control signal, and an output port for providing an output signal. The AGC apparatus further includes a measurement circuit for generating a received power signal based on the power of the output signal. A saturating integrator (22) compares the received power signal to a reference signal and generates a gain control signal in response to a result of the comparison. The saturating integrator (22) includes a decision circuit (46) for enabling integration based on values of the received power signal, the reference signal, and the gain control signal. In a preferred implementation, the utilization of an input limiter in conjunction with an analog to digital converter enables accommodation of an increased input signal dynamic range.

公开(公告)号：BRMU7903456Y1

公开(公告)日：2016-03-01

申请号：BR7903456

申请日：1999-06-14

Applicant: QUALCOMM INC

Inventor： ROSS DAVID J ,  CHOW MARLAND ,  PETERZELL PAUL E

IPC: H02J7/00 ,  H04M1/02 ,  H04M1/72

Abstract: patente de invenção: telefone portátil com bateria embutida. um telefone portátil (10) possui um estojo externo (14) com paredes superior e inferior opostas (16,18), uma das paredes possuindo uma abertura (24) para acesso ao interior do estojo e uma tampa (28) montada de modo removivel na abertura para fechar normalmente a abertura. uma placa de circuito principal (22) é montada no estojo externo, com uma pluraridade de componentes de telefone (30) montados sobre a placa de circuito. uma região predeterminada (26) da placa alinhada com a abertura é deixada exposta ou vazia de componentes e forma um recesso para receber uma bateria (12). o recesso (26) para receber a bateria possui ressaltos de contato (39, 40) e uma bateria (12) é acoplada de forma removivel no recesso, com os contatos de bateria se acoplando aos ressaltos de contato no recesso, pelo que a bateria pode ser retirada e substituída através da abertura após abrir a tampa.

公开(公告)号：DE60224162T2

公开(公告)日：2008-12-04

申请号：DE60224162

申请日：2002-01-10

Applicant: QUALCOMM INC

Inventor： PETERZELL PAUL E ,  MALDONADO DAVID ,  GARD KEVIN ,  SEE PUAY HOE ANDREW ,  DUNWORTH JEREMY D ,  SAHOTA KAMAL

IPC: H03L7/183 ,  H04B1/30 ,  G01N33/14 ,  H03D3/00 ,  H04B1/40

Abstract: PROBLEM TO BE SOLVED: To provide local oscillator leakage control in direct conversion processes. SOLUTION: A system and method for generating a local oscillator (LO) frequency in a zero intermediate frequency (IF) receiver or transmitter is presented. A signal is received from a voltage controlled oscillator (VCO). The signal has a VCO frequency. The VCO frequency is divided by a number N to produce a signal having a divided-down frequency. The signal having the VCO frequency is then mixed with the signal having the divided-down frequency to produce an output signal having an output frequency. Local oscillator leakage is reduced. Thus, the receiver or transmitter may operate in multiple wireless communication bands and modes and meet the associated specifications. COPYRIGHT: (C)2009,JPO&INPIT

公开(公告)号：ES2308076T3

公开(公告)日：2008-12-01

申请号：ES04019498

申请日：1995-12-11

Applicant: QUALCOMM INC

Inventor： WHEATLEY CHARLES E III ,  PETERZELL PAUL E ,  KORNFELD RICHARD K ,  WEILAND ANA L

IPC: H04B1/06 ,  H04B7/005 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/26 ,  H04B15/00

Abstract: Un aparato para aumentar una inmunidad de un receptor de radio a la interferencia a la radiofrecuencia, el receptor de radio estando recibiendo una señal, y comprendiendo el aparato: un conmutador (1105) acoplado a la señal recibida, el conmutador (1105) teniendo una posición de abierto y una posición de cerrado; una resistencia (1101), un primer extremo de la resistencia (1101) estando acoplado a la posición de cerrado del conmutador (1105) y un segundo extremo de la resistencia (1101) estando acoplado a un potencial de tierra; un amplificador (1110) que tiene una entrada acoplada a la posición de abierto del conmutador (1105), para generar una señal recibida amplificada en una salida; un controlador acoplado al conmutador (1105) para conmutar el conmutador (1105) a la posición de cerrado en respuesta a la señal recibida que sobrepasa un nivel de potencia predeterminado, la mencionada señal recibida pasando a través del mencionado conmutador (1105) y la mencionada resistencia (1101) al potencial de tierra cuando el mencionado conmutador (1105) está en la mencionada posición de cerrado; y la mencionada resistencia (1101) creando un desacoplo de impedancias en la entrada del mencionado amplificador (1110) cuando el mencionado conmutador (1105) está en la posición de cerrado, reduciendo así la ganancia contribuida por el mencionado amplificador (1110).

公开(公告)号：DE69938345D1

公开(公告)日：2008-04-24

申请号：DE69938345

申请日：1999-06-14

Applicant: QUALCOMM INC

Inventor： PETERZELL PAUL E ,  ROSS DAVID J ,  CHOW MARLAND

IPC: H02J7/00 ,  H04M1/72 ,  H04M1/02

Abstract: A portable phone has an outer casing with opposite upper and lower walls, one of the walls having an opening for access to the interior of the casing, and a lid removably mounted in the opening for normally closing the opening. A main circuit board is mounted in the outer casing, with a plurality of phone components mounted on the circuit board. A predetermined region of the board aligned with the opening is left exposed or empty of components, and forms a recess for receiving a battery. The battery receiving recess has contact pads, and a battery is removably engaged in the recess with battery contacts engaging the contact pads in the recess, whereby the battery can be removed and replaced via the opening after opening the lid.

公开(公告)号：DE60224162D1

公开(公告)日：2008-01-31

申请号：DE60224162

申请日：2002-01-10

Applicant: QUALCOMM INC

Inventor： PETERZELL PAUL E ,  MALDONADO DAVID ,  GARD KEVIN ,  SEE PUAY HOE ANDREW ,  DUNWORTH JEREMY D ,  SAHOTA KAMAL

IPC: H03L7/183 ,  H04B1/30 ,  G01N33/14 ,  H03D3/00 ,  H04B1/40

Abstract: PROBLEM TO BE SOLVED: To provide local oscillator leakage control in direct conversion processes. SOLUTION: A system and method for generating a local oscillator (LO) frequency in a zero intermediate frequency (IF) receiver or transmitter is presented. A signal is received from a voltage controlled oscillator (VCO). The signal has a VCO frequency. The VCO frequency is divided by a number N to produce a signal having a divided-down frequency. The signal having the VCO frequency is then mixed with the signal having the divided-down frequency to produce an output signal having an output frequency. Local oscillator leakage is reduced. Thus, the receiver or transmitter may operate in multiple wireless communication bands and modes and meet the associated specifications. COPYRIGHT: (C)2009,JPO&INPIT

公开(公告)号：AU2007234638A1

公开(公告)日：2007-12-13

申请号：AU2007234638

申请日：2007-11-23

Applicant: QUALCOMM INC

Inventor： PETERZELL PAUL E ,  SIH GILBERT C ,  CHALLA RAGHU ,  HOLENSTEIN CHRISTIAN ,  KANG INJUP ,  LI TAO ,  WALKER BRETT C ,  RAGHUPATHY ARUN ,  SEVERSON MATTHEW L

IPC: H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H04L27/22 ,  H04L27/38

Abstract: An apparatus and method in a wireless communication system, the apparatus comprising: first means for amplifying a received signal; means for cancelling a DC offset in the amplified signal; second means for digitally amplifying the DC offset cancelled signal; and means for measuring the digitally amplified signal and to control the gains of the first and second amplifying means.

公开(公告)号：AU2002245251B2

公开(公告)日：2007-02-08

申请号：AU2002245251

申请日：2002-01-10

Applicant: QUALCOMM INC

Inventor： PETERZELL PAUL E ,  SAHOTA KAMAL ,  DUNWORTH JEREMY D ,  MALDONADO DAVID ,  GARD KEVIN ,  SEE PUAY HOE ANDREW

IPC: H03L7/183 ,  G01N33/14 ,  H03D3/00 ,  H04B1/30 ,  H04B1/40

Abstract: A system and method for generating a local oscillator (LO) frequency in a zero intermediate frequency (IF) receiver or transmitter is presented. A signal is received from a voltage controlled oscillator (VCO). The signal has a VCO frequency. The VCO frequency is divided by a number N to produce a signal having a divided-down frequency. The signal having the VCO frequency is then mixed with the signal having the divided-down frequency to produce an output signal having an output frequency. Local oscillator leakage is reduced. Thus, the receiver or transmitter may operate in multiple wireless communication bands and modes and meet the associated specifications.

公开(公告)号：BR0207274A

公开(公告)日：2006-10-10

申请号：BR0207274

申请日：2002-02-15

Applicant: QUALCOMM INC

Inventor： LI TAO ,  HOLENSTEIN CHRISTIAN ,  KANG INJUP ,  WALKER BRETT C ,  PETERZELL PAUL E ,  CHALLA RAGHU ,  SEVERSON MATTHEW L

IPC: H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H04L27/22 ,  H04L27/38 ,  H04B1/30 ,  H04Q7/20

Abstract: An apparatus and method in a wireless communication system, the apparatus comprising: first means for amplifying a received signal; means for cancelling a DC offset in the amplified signal; second means for digitally amplifying the DC offset cancelled signal; and means for measuring the digitally amplified signal and to control the gains of the first and second amplifying means.

公开(公告)号：CA2467276C

公开(公告)日：2005-06-21

申请号：CA2467276

申请日：1995-12-11

Applicant: QUALCOMM INC

Inventor： WEILAND ANA L ,  KORNFELD RICHARD K ,  PETERZELL PAUL E ,  WHEATLEY CHARLES E III

IPC: H04B1/06 ,  H03G1/00 ,  H03G3/30 ,  H04B20060101 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/40 ,  H04B1/7075 ,  H04B1/7097 ,  H04B3/06 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00

Abstract: The process of the present invention adjusts the input gain by a predetermined amount. The receiver processing measures the gain change in the IF signal power. If the change is less than the predetermined amount, the CDMA signal and jammers are below the noise floor and, therefore, the gain is increased. If the IF signal power change is equal to the predetermined amount, the CDMA signal is above the noise floor and the interference is minimal. Therefore, in this case, gain adjustment is not necessary, but increasing gain will improve sensitivity. If the IF signal power change is greater than the predetermined amount, the interference is evident and the gain is reduced to reduce the intermodulation products. This process is used until the receiver is operating at the best compromise between interference and noise figure.