公开(公告)号：JPH10112623A

公开(公告)日：1998-04-28

申请号：JP27378997

申请日：1997-09-19

Applicant: MOTOROLA INC

Inventor： BLACK GREGORY R

IPC: H03F1/30 ,  H03F3/193 ,  H03F3/24 ,  H03G3/30

Abstract: PROBLEM TO BE SOLVED: To provide a power amplifier circuit which is not sensitive to the temperature variance. SOLUTION: A power amplifier circuit 200 amplifies the RF(radio frequency) signal received at its input side 208 into an amplified RF signal at its output side 210 and includes a coupling circuit 222, a 2nd input side 206, a power amplifier 218 and a level shifter 228. The circuit 222 is connected to the side 210 and detects the level of the amplified RF signal level, and the side 206 receives the control signal that is obtained at the detected signal level. The amplifier 218 includes the transistors 234 and 236 whose gates 238 and 240 are connected to the input side of the amplifier with the drains 242 and 244 connected to the output side respectively. The shifter 228 is connected to the side 206 and the gates 238 and 240 and supplies the VGG (bias voltage) to these gates in response to the control signal. The shifter 228 also includes a circuit 255 which minimizes the temperature sensitivity of the VGG.

公开(公告)号：WO2004019378B1

公开(公告)日：2004-06-10

申请号：PCT/US0324402

申请日：2003-08-05

Applicant: MOTOROLA INC

Inventor： BLACK GREGORY R ,  BINZEL CHARLES PHILIPP

IPC: H04B15/04 ,  H04B1/10

CPC classification number: H04B15/04 ,  H04B2215/064 ,  H04B2215/065

Abstract: An apparatus and method for eliminating interference caused by spurious signals in communication signals communicated via a communication device on any one of a plurality of different channels, the communication device operating at a rate set by a system clock signal. The system clock frequency is generated at a first frequency, the first frequency generating spurious signals on at least one of the different channels. The system clock frequency is toggled by a first predetermined amount to a second frequency when the communication device is to be tuned to one of the different channels so as to remove the spurious signals from the tuned channel. The communication device is tuned to the at least one of the different channels. A return of the timing error to a predetermined value is synchronized at a start of a receive data capture event.

Abstract translation: 一种用于消除由通信设备在多个不同信道中的任何一个信道上传送的通信信号中的寄生信号引起的干扰的设备和方法，通信设备以由系统时钟信号设定的速率工作。 系统时钟频率以第一频率产生，第一频率产生至少一个不同信道上的寄生信号。 当通信设备要被调谐到不同信道之一时，系统时钟频率被切换第一预定量到第二频率，以从调谐信道中去除寄生信号。 通信设备被调谐到不同频道中的至少一个。 定时错误返回到预定值在接收数据捕获事件开始时被同步。

公开(公告)号：WO2007130751A2

公开(公告)日：2007-11-15

申请号：PCT/US2007064556

申请日：2007-03-21

Applicant: MOTOROLA INC ,  BLACK GREGORY R ,  BINZEL CHARLES P

Inventor： BLACK GREGORY R ,  BINZEL CHARLES P

IPC: H04W28/04 ,  H04W28/18 ,  H04W68/00 ,  H04W76/02

CPC classification number: H04M1/82 ,  H04M1/72519 ,  H04W28/18 ,  H04W68/00 ,  H04W76/02

Abstract: Disclosed is a wireless communication device (102) and method for ringback control, the device (102) capable of receiving an incoming call (414), the device (102) having a timing circuit (110) configured to determine a delay (204) for a predetermined period of time for ringtone generation at a calling party device (104). A device (104) with a single transducer (114) may increase the volume of a ringtone or other alerts. The delay (122) may correspond to the increased volume. In one embodiment, the delay (322) of the ringtone generation at the calling party is provided by delaying the transmission (324) of the acknowledgment alerting signal by the wireless communication device (302) until after the predetermined period of the delay. In another embodiment, the alerting signal includes a delay parameter (430) so that the wireless infrastructure delays signaling a ringtone to the calling party device (404). In another embodiment, the alerting signal includes a delay parameter (536) so that the calling party device (504) delays the activation of a ringtone (540).

Abstract translation: 公开了一种用于回铃控制的无线通信设备（102）和方法，所述设备（102）能够接收呼入（414），所述设备（102）具有定时电路（110），其被配置为确定延迟（204） 在呼叫方设备（104）处产生铃声预定的时间段。 具有单个换能器（114）的设备（104）可以增加铃声的音量或其他警报。 延迟（122）可以对应于增加的体积。 在一个实施例中，通过延迟无线通信设备（302）的确认告警信号的传输（324）直到延迟的预定周期之后来提供呼叫方的铃声生成的延迟（322）。 在另一个实施例中，警报信号包括延迟参数（430），使得无线基础设施延迟向呼叫方设备（404）发信号通知铃声。 在另一个实施例中，警报信号包括延迟参数（536），使得主叫设备（504）延迟铃声的激活（540）。

公开(公告)号：WO2004019378A3

公开(公告)日：2004-04-29

申请号：PCT/US0324402

申请日：2003-08-05

Applicant: MOTOROLA INC

Inventor： BLACK GREGORY R ,  BINZEL CHARLES PHILIPP

IPC: H04B15/04 ,  H04B1/10

CPC classification number: H04B15/04 ,  H04B2215/064 ,  H04B2215/065

Abstract: An apparatus and method for eliminating interference caused by spurious signals in communication signals communicated via a communication device on any one of a plurality of different channels, the communication device operating at a rate set by a system clock signal. The system clock frequency is generated at a first frequency, the first frequency generating spurious signals on at least one of the different channels. The system clock frequency is toggled by a first predetermined amount to a second frequency when the communication device is to be tuned to one of the different channels so as to remove the spurious signals from the tuned channel. The communication device is tuned to the at least one of the different channels. A return of the timing error to a predetermined value is synchronized at a start of a receive data capture event.

Abstract translation: 一种用于消除通过通信设备在多个不同信道中的任何一个上通信的通信信号中由伪信号引起的干扰的装置和方法，所述通信设备以由系统时钟信号设置的速率操作。 系统时钟频率以第一频率产生，第一频率在至少一个不同频道上产生寄生信号。 当通信设备要调谐到不同信道中的一个时，系统时钟频率被第一预定量切换到第二频率，以便从调谐信道去除杂散信号。 通信设备被调谐到不同频道中的至少一个。 在接收数据捕获事件开始时，将定时误差返回到预定值。

公开(公告)号：DE19709806B4

公开(公告)日：2005-04-21

申请号：DE19709806

申请日：1997-03-10

Applicant: MOTOROLA INC

Inventor： BARKAT SHAKIL H ,  BLACK GREGORY R

IPC: H02J9/06 ,  H03K17/30 ,  H04B1/44 ,  H04M1/00 ,  H04M1/02 ,  H03K17/06 ,  H04M19/00

Abstract: A switching circuit (30) in a portable telephone connects a gate of a field-effect transistor (Q1) to a voltage below the transistor's gate threshold voltage when the voltage at a first power source terminal (B) falls below a threshold voltage, thus disconnecting the first power source terminal (B) from a portable telephone power input terminal (B+) and connecting a second power source terminal (A) to the power input terminal (B+). The threshold voltage is set at a voltage above the minimum supply voltage of the portable telephone. The first power source terminal may be connected to a main battery and the second power source terminal may be connected to an adapter such as a battery eliminator adapter, hands-free adapter, or mobile transceiver adapter. This switching circuit prevents a call in progress from being disconnected when power sources are exchanged during a GSM burst.

公开(公告)号：GB2350988B

公开(公告)日：2001-02-14

申请号：GB0022423

申请日：1997-02-06

Applicant: MOTOROLA INC

Inventor： BLACK GREGORY R ,  HIETALA ALEXANDER WAYNE ,  BURNS MARK ROBERT

IPC: H04B15/04 ,  H04B1/10 ,  H04B1/69 ,  H04L27/00

公开(公告)号：SG65642A1

公开(公告)日：1999-06-22

申请号：SG1997000650

申请日：1997-03-05

Applicant: MOTOROLA INC

Inventor： BLACK GREGORY R ,  MILLARD JASON D ,  DOMBROWSKI RICHARD J

IPC: H01Q1/24 ,  H01Q1/36 ,  H01Q1/50 ,  H03H7/38 ,  H01Q9/32 ,  H04B1/18 ,  H04B1/38 ,  H04M1/02 ,  H04B1/40

Abstract: A wireless communication device (20) provides a matching state between a radio circuit (28) and an antenna assembly (26) in both its retracted and extended positions, and does so with an elegant design that increases reliability and manufacturability by reducing the number and complexity of components and moving mechanical parts. A matching circuit (30), which is reconfigured according to a switch (32) that is responsive to the antenna's position, provides the matching states. Furthermore, the switch (32) can be integrally formed as part of a feed terminal (36), the feed terminal (36) and a ground terminal (38) can hold the antenna in position, and the ground terminal (38) can hold a guiding tube (52). Alternatively, the switch (32) can include a diode (102) and a sensor. The sensor is a rod (46) of the antenna assembly that makes and breaks an electrical path between the feed terminal and the ground terminal to change the state of the diode.

公开(公告)号：CA2089480C

公开(公告)日：1998-12-08

申请号：CA2089480

申请日：1992-06-08

Applicant: MOTOROLA INC

Inventor： BLACK GREGORY R ,  HIETALA ALEXANDER W ,  AGAHI-KESHEH DARIOUSH

IPC: H03B1/00 ,  H03B5/04 ,  H03B5/12 ,  H03B5/18 ,  H03L7/099 ,  H04B7/26 ,  H03L7/06

Abstract: A voltage controlled oscillator and buffer amplifier circuit (211) is disclosed. The circuit is in a stacked configuration, whereby, the current from the power supply (361) is used by the buffer amplifier circuit and reused by the VCO circuit. The VCO circuit includes two transistors (333, 325). The transistors are set-up in a mirrored configuration, so that one of the transistors (325) controls the bias current in the other transistor (333). Both of the transistors are integrated into a semiconductor circuit die (365), thus, matching the thermal characteristics of the transistors (333, 325) and improving control of the bias current. The die (365) is bonded to a ceramic substrate (601). The substrate (601) has connectivity paths for connecting components in the circuit die to components external to the circuit die. Some of the connectivity paths are made of a material and length to form passive circuit elements.

公开(公告)号：FR2759823A1

公开(公告)日：1998-08-21

申请号：FR9715232

申请日：1997-12-03

Applicant: MOTOROLA INC

Inventor： PECKHAM DAVID S ,  BLACK GREGORY R

IPC: H04B1/00 ,  H04B1/04 ,  H04B1/40 ,  H03H7/38 ,  H03H11/28 ,  H03F1/56 ,  H03F3/20

Abstract: An exciter matching circuit (125), interstage matching circuit (134), and harmonic filter matching circuit (140) match impedances at the input to a two-stage power amplifier (130), between the first stage (132) and the second stage (136) of the power amplifier (130), and at the output of the power amplifier (130) for more than one frequency band of interest. In a GSM/DCS dual band radiotelephone (101), the matching circuits (124, 134, 140) provide low return loss at 900 MHz when the dual band transmitter (110) is operating in the GSM mode. The harmonic filter matching circuit (140) also filters out signals at 1800 MHz, 2700 MHz, and high order harmonics. When the dual band transmitter (110) is in DCS mode, however, the matching circuits (124, 134, 140) provide a low return loss at 1800 MHz and filter out signals at 2700 MHz and harmonics of 1800 MHz.

公开(公告)号：MX9701892A

公开(公告)日：1997-09-30

申请号：MX9701892

申请日：1997-03-12

Applicant: MOTOROLA INC

Inventor： BARKAT SHAKIL H ,  BLACK GREGORY R

IPC: H03K17/30 ,  H04B1/44 ,  H04M1/00 ,  H02J9/06 ,  H04M1/02 ,  H04B01/00 ,  H04M01/00

Abstract: Un circuito conmutador (30) en un teléfono portátil conecta una compuerta de un transistor de efecto de campo (Q1) a un voltaje por debajo del voltaje umbral de la compuerta del transistor cuando el voltaje en una primer terminal (B) de fuente de energía cae por debajo de un voltaje de umbral, desconectando así la primer terminal (B) de fuente de energía de una terminal (B+) de entrada de energía de teléfono portátil y conectando una segunda terminal (A) de fuente de energía a la terminal (B+) de entrada de energía. El voltaje de umbral se establece a un voltaje por encima del voltaje de suministro mínimo del teléfono portátil. La primer terminal de fuente de energía puede conectarse a una batería principal y la segunda terminal de fuente de energía puede conectarse a un adaptador tal como un adaptador eliminador de batería, adaptador a manos libres, o adaptador transceptor movil. Este circuito de conmutacion evita que una llamada en progreso se desconecte cuando las fuentes de energía son intercambiadas durante un impulso del GSM.