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1. 发明申请

WO1985000942A1 LINEAR GAIN VOLTAGE CONTROLLED OSCILLATOR WITH MODULATION COMPENSATION 审中-公开
标题翻译：具有调制补偿的线性增益控制振荡器
公开(公告)号：WO1985000942A1
公开(公告)日：1985-02-28
申请号：PCT/US1984001179
申请日：1984-07-26
申请人： MOTOROLA, INC.
发明人： MOTOROLA, INC. , RICE, Craig, William , POPEK, Marc, Howard
IPC分类号： H03C03/08
CPC分类号： H03C3/0958 , H03B5/1203 , H03B5/1228 , H03B5/1243 , H03C3/225 , H03C2200/005 , H03C2200/0083 , H03L2207/06
摘要： In a compensated VCO circuit arrangement for providing constant modulation level over a wide frequency band a VCO (55) is disclosed having a linear VCO gain factor vs. control voltage curve over the wide frequency band of interest. A compensation network (65) is coupled to the VCO to provide an audio output having linear output level vs. control voltage curve. By appropriately matching the two linear curves the variation in modulation level over the frequency band of interest is substantially reduced.

2. 发明申请

WO1997018625A1 FM MODULATOR 审中-公开
标题翻译： FM调制器
公开(公告)号：WO1997018625A1
公开(公告)日：1997-05-22
申请号：PCT/JP1996001706
申请日：1996-06-20
申请人： IKEDA, Takeshi , OKAMOTO, Akira
IPC分类号： H03C03/08
CPC分类号： H03C3/10
摘要： An FM modulator (1) includes two phase shifting circuits (10C and 130C) and an FET (35) is provided in a CR circuit in the circuit (130C). The FM modulator (1) oscillates at the frequency at which the sum of the amounts of phase shift by means of the two circuits (10C and 130C) is 360 DEG . When the channel resistance of the FET (35) is slightly changed by a signal inputted externally, the modulator (1) outputs FM signals from an output terminal (92) by directly utilizing the change for the frequency modulation.
摘要翻译： FM调制器（1）包括两个移相电路（10C和130C），并且FET（35）设置在电路（130C）中的CR电路中。 FM调制器（1）以通过两个电路（10C和130C）的相移量之和为360°的频率振荡。当通过外部输入的信号使FET（35）的沟道电阻略微变化时，调制器（1）通过直接利用频率调制的变化从输出端（92）输出FM信号。

3. 发明申请

WO1982003510A1 WIDEBAND MODULATION SENSITIVITY COMPENSATED VOLTAGE CONTROLLED OSCILLATOR 审中-公开
标题翻译：宽带调制灵敏度补偿电压控制振荡器
公开(公告)号：WO1982003510A1
公开(公告)日：1982-10-14
申请号：PCT/US1982000185
申请日：1982-02-12
申请人： MOTOROLA INC
发明人： MOTOROLA INC , GOEDKEN TERRANCE JOHN , GEHRKE JAMES KEITH
IPC分类号： H03C03/08
CPC分类号： H03C3/08 , H03B2200/004 , H03C3/22 , H03C2200/005
摘要： Un oscillateur commande par la tension, de compensation de la sensibilite de modulation, a bande large compense automatiquement et de maniere continue sur une grande largeur de bande les variations de sensibilite de modulation resultant des changements dans la frequence centrale des oscillations. L'oscillateur comprend un reseau de direction (30) couple a l'entree d'un reseau oscillateur (20) pour commander sa frequence centrale. Un reseau de modulation (50) est egalement couple a l'entree du reseau oscillateur (20) par l'intermediaire d'un reseau de compensation (40). Le reseau de compensation (40) fait varier en continu l'accouplement entre le reseau de modulation (50) et le reseau oscillateur (20) en reponse aux signaux de commande appliques a l'entree (32) du reseau de direction (30) de maniere a compenser les variations de sensibilite de modulation.

4. 发明申请

WO1997018624A1 FM MODULATOR 审中-公开
标题翻译： FM调制器
公开(公告)号：WO1997018624A1
公开(公告)日：1997-05-22
申请号：PCT/JP1996001705
申请日：1996-06-20
申请人： IKEDA, Takeshi , OKAMOTO, Akira
IPC分类号： H03C03/08
CPC分类号： H03C3/08 , H03B5/20 , H03B5/24 , H03C3/20 , H03C3/28
摘要： An FM modulator (1) includes two phase shifting circuits (110C and 30C) and a capacitor microphone (14-1) is provided in the circuit (110C). The FM modulator (1) oscillates at the frequency at which the sum of the amounts of phase shift of the two circuits (110C and 30C) is 360 DEG . When the capacitance of the microphone (14-1) is slightly changed by the sound pressure, the modulator (1) outputs FM signals from an output terminal (92) by directly utilizing the change for the frequency modulation.
摘要翻译： FM调制器（1）包括两个移相电路（110C和30C），电路（110C）中提供电容麦克风（14-1）。 FM调制器（1）以两个电路（110C和30C）的相移量之和为360°的频率振荡。当麦克风（14-1）的电容被声压略微改变时，调制器（1）通过直接利用频率调制的改变从输出端（92）输出FM信号。

5. 发明申请

WO1986000767A1 A DATA FREQUENCY MODULATOR WITH DEVIATION CONTROL 审中-公开
标题翻译：具有偏差控制的数据频率调制器
公开(公告)号：WO1986000767A1
公开(公告)日：1986-01-30
申请号：PCT/US1985001192
申请日：1985-06-21
申请人： MOTOROLA, INC.
发明人： MOTOROLA, INC. , CARNEY, Scott, N. , GOODE, Steven, H. , LINDER, Donald, L.
IPC分类号： H03C03/08
CPC分类号： H03C3/0983 , H03C3/0941 , H03C3/0966 , H03C2200/005 , H04L27/2017
摘要： An automatic deviation control circuit for an angle modulated data transmitter wherein the deviation level of modulated data output from VCO (300) is controlled by a modulation cancelling deviation error detection feedback loop comprising mixer (600), phase detector (408A), low pass filter (410), and VCO (406). After the modulation is cancelled by said feedback loop from a sample of modulated carrier by a predetermined value of deviation developed by divider (302), residual modulation is detected by phase detector (408A), sampled by S/H (808 and 810) following a predetermined number of like-level data bits, and applied to the modulation path gain of amplifier (802) to increase or decrease the deviation such that the residual modulation is minimized.

6. 发明申请

WO1997009777A2 GENERATOR FOR A LINEARLY FREQUENCY-MODULATED SIGNAL 审中-公开
标题翻译：信号发生器产生线性调频信号
公开(公告)号：WO1997009777A2
公开(公告)日：1997-03-13
申请号：PCT/DE1996001668
申请日：1996-09-05
申请人： SIEMENS AKTIENGESELLSCHAFT , MAGORI, Valentin , NALENZINSKI, Martin
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H03C03/08
CPC分类号： H03C3/08
摘要： In order to improve the linearity of the frequency modulation, the frequency-modulated signal (fT(t)) and the same signal delayed by a time tau (fT(t- tau )) via a surface wave component (OFW) is applied to the inputs of a mixer (M). The constance of the frequency difference DELTA f from the frequency-modulated signal (fT(t)) and the same delayed signal (fT(t- tau )) is a measure of the linearity of the frequency modulation. The frequency difference is kept constant by means of a control system and thus the non-linearity is minimised.
摘要翻译：提高频率调制（M）位于一个混频器，其频率调制信号（F（t））和由时间tau的表面声波元件（SAW）的相同的手段延迟上的调频信号（F（叔TAU））的输入端的线性度。差频DELTA F的在混合器中的频率调制信号的（M）（F（T））和相同的时间延迟的信号（F（叔TAU））的输出端获得恒定性是频率调制的线性度的量度。通过控制的装置，所述差频被保持恒定，从而最小化非线性。

7. 发明申请

WO1990006624A1 DIGITAL GMSK MODULATOR WITH NON-INTEGER BIT INTERVAL HANDLING 审中-公开
标题翻译：具有非整数位间隔处理的数字GMSK调制器
公开(公告)号：WO1990006624A1
公开(公告)日：1990-06-14
申请号：PCT/US1989004906
申请日：1989-11-06
申请人： MOTOROLA, INC.
发明人： MOTOROLA, INC. , WANG, Chih-Fei
IPC分类号： H03C03/08
CPC分类号： H04L27/2017
摘要： A modulation circuit is used in a GMSK modulation system. The system includes I-channel (210) and Q-channel (212) ROM look-up tables, each programmed for generating a representative digital waveform based on an input data stream (250) and a clock signal (252). Each digital waveform is converted to an analog signal for subsequent radio frequency (RF) modulation. Each ROM is addressed by an interpolation counter (224) controlled by a clock signal (252), by a data shift register (226) receiving input data (250) at a rate corresponding to the clock signal, and by a quadrant register (230), also receiving the input data, for specifying the phase of the data signal with respect to the clock signal. Additionally, a signal (242) indicating the arrival of a non-integer bit interval is provided. In response to this signal, ROM addressing is updated in order to provide control of the modulated carrier's phase angle.

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