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1. 发明专利

JPS5710535A MUTING CIRCUIT FOR SAMPLING QUARTZ LOCK CIRCUIT 失效
公开(公告)号：JPS5710535A
公开(公告)日：1982-01-20
申请号：JP8426080
申请日：1980-06-20
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO
IPC分类号： H04B1/26 , H03L7/08 , H04B1/10
摘要： PURPOSE:To remove the noise at transient response in which the local oscillating frequency starts to be locked, by controlling a voice rejecting circuit also with the rectified output of signals within specific frequency range among the beat signals from a phase comparator. CONSTITUTION:Among the beat signals from a phase comparator in the loop of a sampling quartz lock circuit, a voice rejecting circuit is controlled even with the rectified output of the signals within the specific frequency range. For example, the beat signal from the phase comparator of a lock circuit of an FM receiver is given to the 2nd high-pass filter 21 having lower cutoff frequency than that of the 1st high-pass filter 11 and a transistor TRQ3 via the 2nd rectifier circuit 22. Further, the rectified output of the beat signal having lower frequency in transient response where the local oscillating frequency is locked, turns of the TRQ3, and the output is given to a voice muting TR23 via an NAND gate circuit NG2 to make muting.

2. 发明专利

JPS5926130B2 JPS5926130B2 - 失效
公开(公告)号：JPS5926130B2
公开(公告)日：1984-06-25
申请号：JP6479876
申请日：1976-05-31
申请人： Sanyo Electric Co
发明人： IMAMURA EIGO
IPC分类号： H03J7/28 , H03J5/00 , H03J7/20 , H04B1/06 , H04B1/16 , H04B1/26
CPC分类号： H03J1/045

3. 发明专利

JPS57203317A CHANNEL SELECTING CIRCUIT 失效
公开(公告)号：JPS57203317A
公开(公告)日：1982-12-13
申请号：JP8862981
申请日：1981-06-08
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO
IPC分类号： H03J5/02 , H03J7/18
摘要： PURPOSE:To avoid the variation of the tuning voltage in case when another switch is operated while the channel lock is received, by providing a switching element that cuts off a switch and a bias circuit. CONSTITUTION:The switching transistors (TR)Q7 and Q8 are provided between the switches S1-S12 and a bias circuit 8, and at the same time these TRs Q7 and Q8 are controlled by the output of a TRQ6 which inverts the collector voltage of a driving TRQ5. Accordingly the TRQ6 is turned off in the channel lock state, and the TRs Q7 and Q8 are turned off. Thus the switches S1-S12 are cut off from the circuit 8 to avoid giving no effect to the tuning voltage of the channel which is being received. In such way, the variation of the tuning voltage can be avoided in case when another switch is operated while the channel lock is received.

4. 发明专利

JPS57154928A CHANNEL SELECTING CIRCUIT 失效
公开(公告)号：JPS57154928A
公开(公告)日：1982-09-24
申请号：JP4108281
申请日：1981-03-19
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO
IPC分类号： H03J7/18 , H03J1/04 , H03J5/00 , H03J7/32 , H04N5/44
摘要： PURPOSE:To avoid useless display current when plural control means are operated at one time for a channel selecting circuit of a TV picture receiver, etc., by setting a current limiting resistance in series to a light emitting element for channel display. CONSTITUTION:The current supplied from a 32V power supply line 5 is limited to actuate a transistor TRQ4 at a moment when control switches S1 and S2 are operated at one time. At the same time, the current flowing into the 11th pin from the side of a light emitting diode D22 via the switches S2 and S1 is limited by current limiting resistances R22 and R21 and after a low level is set for the 11th pin 11 of a channel selecting IC circuit 1. Thus the light emitting diode is substantially turned off. In this case, the current flowing from the line 5 through a volume VR2 plus the switches S2 and S1 is also limited, and the channel selection state set previously may possibly vary mistakenly. However, a capacitor C5 functions to give no effect to the TRQ4 against the voltage rise at point (c) caused by the mistaken channel display current. Thus the display has no change.

5. 发明专利

JPS56110343A GATE DRIVING CIRCUIT OF SAMPLING QUARTZ LOCK CIRCUIT 失效
公开(公告)号：JPS56110343A
公开(公告)日：1981-09-01
申请号：JP1265380
申请日：1980-02-04
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO , MASUHARA MASAMI
IPC分类号： H03J7/28 , H03L7/08 , H03L7/20 , H04B1/26
摘要： PURPOSE:To easily lock the local oscillation frequency at the prescribed frequency, by forming a positive feedback loop between the input and the output of a gate driving transistor when the beat signal sent from a phase comparator becomes less than the cut-off frequency. CONSTITUTION:When the frequency of the beat signal sent from a phase comparator becomes less than the cut-off frequency of the high pass filter 11, the output of the rectifying circuit 14 becomes 0. Then the gate driving transistor Q2 is turned off and the collector potential of the Q2 increases. This collector potential is applied to the base of the positive feedback transistor Q3 via the capacitor C6 and the resistance R11. As a result, the Q3 is turned on, and then the Q2 is kept off as it is. Thus the collector voltage of the Q2 increases instantaneously to instantaneously set the voltage of the gate electrode of the FETQ1 at a high level, and accordingly the FETQ1 is turned on to open the gate 9.

6. 发明专利

JPS53132933A MULTICHANNEL RECEIVER WITH PRIORITY CHANNEL 失效
公开(公告)号：JPS53132933A
公开(公告)日：1978-11-20
申请号：JP4889677
申请日：1977-04-25
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO
IPC分类号： H03J7/20 , H04B1/16 , H04B1/40
摘要： PURPOSE:To make use of signals of priority CH, which are enabled to be received forcibly, for CB transceivers, etc., by composing the only some part of a frontend part of two-sequence circuit for general channel and for priority CH.

7. 发明专利

JPS5315014A SIGNAL SWEEP RECEIVER 失效
公开(公告)号：JPS5315014A
公开(公告)日：1978-02-10
申请号：JP9059576
申请日：1976-07-27
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO
IPC分类号： H03J7/20 , H03J7/28
摘要： PURPOSE:To have a sweep channel selection by jumping the unwanted channels through an operation of the channel jumping switch, and thus to prevent the occurrence of the rasping signal sound and noise at the channel used irrespective of the existence of the broadcast signal.

8. 发明专利

JPS52146510A DISPLAY UNIT OF STORED CONTENTS IN TUNING MEMORY 失效
公开(公告)号：JPS52146510A
公开(公告)日：1977-12-06
申请号：JP6479876
申请日：1976-05-31
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO
IPC分类号： H03J7/28 , H03J5/00 , H03J7/20 , H04B1/06 , H04B1/16 , H04B1/26
摘要： PURPOSE:To realize the visible display of the stored contents in the tuning memory by utilizing the luminous element in the synthesizer receiver, etc.

9. 发明专利

JPS6247377B2 失效
公开(公告)号：JPS6247377B2
公开(公告)日：1987-10-07
申请号：JP7955179
申请日：1979-06-22
申请人： SANYO ELECTRIC CO
发明人： IMAMURA EIGO , MASUHARA MASAMI
IPC分类号： H03J7/28 , H03L7/10 , H03L7/113 , H03L7/20 , H04B1/26

10. 发明专利

JPS6199479A Vtr for sound multiplex 失效
标题翻译： VTR FOR SOUND MULTIPLEX
公开(公告)号：JPS6199479A
公开(公告)日：1986-05-17
申请号：JP22085784
申请日：1984-10-19
申请人： Sanyo Electric Co Ltd
发明人： IMAMURA EIGO
IPC分类号： H04N5/783 , H04N9/802
CPC分类号： H04N9/802 , H04N5/783
摘要： PURPOSE:To prevent the occurrence of buzz beat in a special reproducing mode by providing a switch means which switches an encoder circuit to the monaural mode forcibly in accordance with setting of special reproducing states other than the normal reproducing state. CONSTITUTION:The switch means consisting of three switching transistors TRs Q1-Q3 is interposed between the third terminal of an IC 6 and a system controller 5. When a PLAY button 8 on the operation panel of a VTR is turned on and an FF button 80 is turned on, the VTR is set to the cue state by the control of the system controller 5. The TR Q2 is turned on at this time, and thereby, the TR Q1 is turned on, and the input state of the third terminal of the IC 6 falls to the low level. As the result, the mode changeover switch is set to the monaural mode, and a controlling oscillation circuit 62 and a pilot carrier signal generating circuit 63 stop the operation. Thus, a mode discriminating signal P is not mixed with a sound multiplex signal Q obtained from the sixth terminal of the IC 6.
摘要翻译：目的：通过提供一种根据除了正常再现状态之外的特殊再现状态的设置强制地将编码器电路切换到单声道模式的开关装置，以防止在特殊再现模式中发生蜂鸣声。构成：由三个开关晶体管TR-Q1-Q3组成的开关装置插入在IC6的第三端子和系统控制器5之间。当VTR的操作面板上的PLAY按钮8接通时，FF按钮80 导通时，通过系统控制器5的控制将VTR设定为提示状态。此时，TR Q2导通，由此使TR Q1导通，将第三端子的输入状态 IC 6下降到低水平。结果，模式转换开关被设置为单声道模式，并且控制振荡电路62和导频载波信号发生电路63停止该操作。因此，模式鉴别信号P不与从IC6的第六端获得的声音多路复用信号Q混合。

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