公开(公告)号：EP0645063A1

公开(公告)日：1995-03-29

申请号：EP93911385.0

申请日：1993-05-24

Applicant: MOTOROLA, INC.

Inventor： HECK, Joseph, P. ,  FERRER, Enrique

IPC: H03G3 ,  H04B1

CPC classification number: H03G3/3068 ,  H04B1/109

Abstract: A receiver automatic gain control (AGC) circuit includes a first adjustable gain control amplifier (158) which is responsive to a gain control signal (156). The AGC circuit further includes a second adjustable gain control amplifier (114) and a control circuit (116) which receives the gain control signal (156) and provides a modified gain control signal or VCNTRL (152) to the second adjustable control amplifier (114). The control circuit (116) also limits the amount of gain control applied to adjustable gain control amplifiers (114 and 118) when the gain control signal (156) reaches a certain predetermined level. This provides for all further gain reduction to occur at the first adjustable gain control amplifier (158) and thereby reduce the chances for distortion under high input signal conditions.

公开(公告)号：WO2006073567A2

公开(公告)日：2006-07-13

申请号：PCT/US2005/041213

申请日：2005-11-14

Applicant: MOTOROLA, INC. ,  BOLTON, JR., Jerry, T. ,  HECK, Joseph, P.

Inventor： BOLTON, JR., Jerry, T. ,  HECK, Joseph, P.

IPC: H04B1/10

CPC classification number: H03D7/161 ,  H03D7/18 ,  H04B1/10 ,  H04B1/28

Abstract: A receiver (202) has a down-conversion receiver (304) for transforming a signal (201) from a first operating frequency to a second frequency that is lower than the first operating frequency, and a receiver filter (308) with chopper stabilization for filtering unwanted portions of the signal (306) at the second operating frequency and for generating a final filtered signal (203) at the second operating frequency.

Abstract translation: 接收器（202）具有用于将信号（201）从第一工作频率变换为低于第一工作频率的第二频率的下变频接收器（304），以及接收器 滤波器（308），用于在第二工作频率下滤除信号（306）的不需要部分，并用于在第二工作频率下产生最终滤波信号（203）。

公开(公告)号：WO1992004773A1

公开(公告)日：1992-03-19

申请号：PCT/US1991005761

申请日：1991-08-13

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HECK, Joseph, P.

IPC: H03J01/16

CPC classification number: H04B1/26 ,  H03D7/166 ,  H04B1/48

Abstract: A radio transceiver (100) is coupled to a source of a reference waveform (13), and includes transmit mode receive modes. The transceiver (100) comprises a first down mixer (16), a first low pass filter (20) coupled to the first down mixer, and a first selective coupling switch (S1). The first down mixer (16) is coupled to receive an input signal having an input frequency, for mixing the input signal with the reference waveform to produce a first signal. The first signal has a frequency substantially lower than the input frequency. The first low pass filter (20) is coupled to the first down mixer (16) for producing a filtered first signal. The first selective coupling switch (S1) couples the first down mixer (16) and the low pass filter (20) when the radio transceiver (100) is in the receive mode, and decouples the first down mixer (16) and the low pass filter (20) when the radio transceiver (100) is in the transmit mode, thus substantially eliminating transient disturbances.

公开(公告)号：WO1994021043A1

公开(公告)日：1994-09-15

申请号：PCT/US1994001993

申请日：1994-02-17

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  HECK, Joseph, P.

IPC: H03K05/08

CPC classification number: H03K5/088 ,  H03F1/303

Abstract: An electronic circuit (100) includes an output (110) and a filter circuitry (104, 106 and 108) coupled across this forward transmission path is a feedback loop having an error amplifier (112) and a coupling amplifier (116). Switches (118, 120, 122 and 124) are situated around the error amplifier to form an auto zero circuit. A capacitor (114) in conjunction with the error amplifier (112) provides an integrator for the circuit (100). The auto zero circuit allows the output (110) to follow a desired DC voltage namely (VAG) independent of the offset voltage of the error amplifier (112) or the coupler amplifier (116).

Abstract translation: 电子电路（100）包括输出（110），并且耦合在该正向传输路径上的滤波器电路（104,106和108）是具有误差放大器（112）和耦合放大器（116）的反馈环路。 开关（118,120,122和124）位于误差放大器周围以形成自动零电路。 与误差放大器（112）结合的电容器（114）为电路（100）提供积分器。 自动归零电路允许输出（110）遵循与误差放大器（112）或耦合器放大器（116）的偏移电压无关的期望DC电压（VAG）。

公开(公告)号：WO1988010033A1

公开(公告)日：1988-12-15

申请号：PCT/US1988001531

申请日：1988-05-12

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HECK, Joseph, P.

IPC: H04B01/30

CPC classification number: H03D3/242

Abstract: A problem arises in attempting to recover low frequency FM components in receivers using wide bandwidth tracking loops. Wide loop bandwidths are desirable for rapid signal acquisition but interfere with demodulation of low frequency FM components, such as those produced by digital signalling data. This invention permits recovery of the full modulation spectrum with flat frequency response. A conventional FM demodulator (15) recovers the high frequency modulation components; the frequency control signal for the local oscillator (3) provides the low frequency components. Combining (35) the components with proper weighting (31, 33) produces recovered modulation (37) with bandwidth limited only by the IF bandpass filter (7) or demodulator. The invention would find application in an FM receiver of the superheterodyne or direct conversion type that requires precise frequency control, such as one used for communications in a narrow channel spacing environment at ultra-high frequencies.

Abstract translation: 在使用宽带跟踪环路尝试在接收机中恢复低频FM组件时出现问题。 宽环路带宽对于快速信号采集是理想的，但干扰低频FM组件的解调，例如由数字信令数据产生的那些。 本发明允许以平坦的频率响应恢复全调制频谱。 常规FM解调器（15）恢复高频调制分量; 本地振荡器（3）的频率控制信号提供低频分量。 组合（35）具有适当加权（31,33）的组件产生仅由IF带通滤波器（7）或解调器限制带宽的恢复调制（37）。 本发明可以应用在需要精确频率控制的超外差或直接转换类型的FM接收机中，例如用于在超高频的窄信道间隔环境中的通信。

公开(公告)号：WO2003012871A1

公开(公告)日：2003-02-13

申请号：PCT/US2002/015107

申请日：2002-05-14

Applicant: MOTOROLA, INC.

Inventor： HECK, Joseph, P. ,  BOCKELMAN, David, E. ,  STENGEL, Robert, E.

IPC: H01L27/06

CPC classification number: H01L21/8221 ,  H01L21/02381 ,  H01L21/02488 ,  H01L21/02505 ,  H01L21/02513 ,  H01L21/02521 ,  H01L21/8258 ,  H01L27/0605 ,  H01L27/0688 ,  H01L27/15 ,  H01L2924/00011 ,  H01S5/021 ,  H01S5/0261 ,  H01S2301/173 ,  H03F1/18 ,  H01L2224/80001

Abstract: High quality epitaxial layers of monocrystalline materials (66) can be grown overlying monocrystalline substrates (52) such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. Devices(56) may be formed in the silicon wafer prior to growing the high quality epitaxial layers. Then, to achieve the formation of a compliant substrate, an accommodating buffer layer (65) is grown on silicon wafer. The accommodating buffer layer is a layer of monocrystalline oxide spaced apart from the silicon wafer by an amorphous interface layer (62) of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. The accommodating buffer layer is lattice matched to both the underlying silicon wafer and the overlying monocrystalline material layer. Compound devices (68) are then formed on the overlying monocrystalline layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. In addition, formation of a compliant substrate may include utilizing surfactant enhanced epitaxy, epitaxial growth of single crystal silicon onto single crystal oxide, and epitaxial growth of Zintl phase materials. Silicon devices and circuits (e.g., CMOS circuits) in the silicon wafer are wired (70) to the compound devices (e.g., MESFETs, HBTs, HEMTs, PHEMTs, etc.), forming an electrical connection therebetween.

Abstract translation: 通过形成用于生长单晶层的顺应性衬底，可以将单晶材料（66）的高质量外延层生长在覆盖单晶衬底（52），例如大硅晶片上。 在生长高质量外延层之前，可以在硅晶片中形成器件（56）。 然后，为了形成顺应性衬底，在硅晶片上生长容纳缓冲层（65）。 容纳缓冲层是通过氧化硅的非晶界面层（62）与硅晶片间隔开的单晶氧化物层。 非晶界面层消耗应变并允许高质量单晶氧化物容纳缓冲层的生长。 容纳缓冲层与下面的硅晶片和上覆的单晶材料层晶格匹配。 然后在覆盖的单晶层上形成复合器件（68）。 通过非晶界面层处理容纳缓冲层和底层硅衬底之间的任何晶格失配。 此外，顺应性衬底的形成可以包括利用表面活性剂增强的外延，将单晶硅外延生长到单晶氧化物上，以及Zintl相材料的外延生长。 硅晶片中的硅器件和电路（例如，CMOS电路）被连线（70）到复合器件（例如，MESFET，HBT，HEMT，PHEMT等），在它们之间形成电连接。

公开(公告)号：WO1992017946A2

公开(公告)日：1992-10-15

申请号：PCT/US1992002626

申请日：1992-03-27

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HECK, Joseph, P. ,  ELLINGSON, David, B.

IPC: H04B01/54

CPC classification number: H04B1/54

Abstract: A radio transceiver includes a first local oscillator (114) which is preferably a synthesizer providing a first LO signal, and a second local oscillator providing a second LO signal. The radio further includes a first mixer (110) for mixing the received RF signal and the first LO signal to produce a first IF signal having a frequency which is the difference of the two inputs. The first IF signal is then mixed with the second LO signal by a second mixer (124) where a second IF signal is produced which is preferably at zero frequency. During transmission, the radio uses a conventional modulator to modulate the second LO signal which is then mixed with the first LO signal by a transmitter offset mixer (112), where the output is a modulated RF signal.

Abstract translation: 无线电收发机包括第一本地振荡器（114），其优选地是提供第一LO信号的合成器，以及提供第二LO信号的第二本地振荡器。 无线电还包括用于混合接收的RF信号和第一LO信号的第一混频器（110），以产生具有作为两个输入的差的频率的第一IF信号。 然后通过第二混频器（124）将第一IF信号与第二LO信号混合，其中产生优选为零频率的第二IF信号。 在传输期间，无线电使用常规调制器来调制第二LO信号，然后其通过发射机偏移混频器（112）与第一LO信号混合，其中输出是调制的RF信号。

公开(公告)号：WO1992004765A1

公开(公告)日：1992-03-19

申请号：PCT/US1991005837

申请日：1991-08-16

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HECK, Joseph, P.

IPC: H03C03/00

公开(公告)号：EP0645063B1

公开(公告)日：2002-06-12

申请号：EP93911385.8

申请日：1993-05-24

Applicant: MOTOROLA, INC.

Inventor： HECK, Joseph, P. ,  FERRER, Enrique

IPC: H04B1/10 ,  H03G3/20

CPC classification number: H03G3/3068 ,  H04B1/109

公开(公告)号：EP0545992B1

公开(公告)日：1998-11-04

申请号：EP91915051.6

申请日：1991-08-13

Applicant: MOTOROLA INC.

Inventor： HECK, Joseph, P.

IPC: H03J1/16

CPC classification number: H04B1/26 ,  H03D7/166 ,  H04B1/48