公开(公告)号：US3483919A

公开(公告)日：1969-12-16

申请号：US3483919D

申请日：1968-02-01

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  KOBAYASHI TAKEJI

IPC: F25D29/00 ,  G05D23/24 ,  F25B29/00 ,  F25B41/00 ,  F25D21/08

CPC classification number: F25D29/00 ,  F25B2600/0251 ,  F25D2700/12 ,  F25D2700/122 ,  G05D23/1909 ,  G05D23/1934 ,  G05D23/24 ,  Y02B30/765 ,  Y02B40/32

公开(公告)号：US3670264A

公开(公告)日：1972-06-13

申请号：US3670264D

申请日：1971-03-22

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO

IPC: H03K3/282

CPC classification number: H03K3/2821

Abstract: A multivibrator circuit comprising a base bias-supplying circuit for a transistor which is connected with at least one diode in parallel with a resistor for obtaining stable temperature and voltage characteristics. This resistor serves to overcome the problem of the cessation of variations in bias voltage directly proportional to the supply voltage which is caused by the insertion of the diode. Thus it is possible to start and stop oscillation of the multivibrator circuit even when the supply voltage is reduced to a considerably lower voltage.

Abstract translation: 一种多谐振荡器电路，包括用于与用于获得稳定的温度和电压特性的电阻器并联的至少一个二极管连接的晶体管的基极偏置电路。 该电阻器用于克服与由二极管插入引起的电源电压成正比的偏置电压的停止的问题。 因此，即使当电源电压降低到相当低的电压时，也可以启动和停止多谐振荡器电路的振荡。

公开(公告)号：US3657577A

公开(公告)日：1972-04-18

申请号：US3657577D

申请日：1971-04-23

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  NABAE MITSUO

IPC: H03K5/003 ,  H04N5/213 ,  H03K3/26

CPC classification number: H03K5/003 ,  H04N5/213

Abstract: A synchronizing signal separating circuit provided with a noise gating circuit, the gating period of which is sufficiently long compared with the pulse width of the input signal to the input terminal and which reliably suppresses noise. The noise gating circuit does not use any capacitor but consists of a Darlington circuit, which is very convenient for manufacturing the synchronizing signal separating circuit as an integrated semiconductor circuit.

Abstract translation: 具有噪声门控电路的同步信号分离电路，其门控周期与输入端子的输入信号的脉冲宽度相比足够长，并可靠地抑制噪声。 噪声门控电路不使用任何电容器，而是由达林顿电路组成，这对于制造作为集成半导体电路的同步信号分离电路非常方便。

公开(公告)号：US3694774A

公开(公告)日：1972-09-26

申请号：US3694774D

申请日：1971-04-23

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  NABAE MITSUO

IPC: H03K3/013 ,  H03K3/282 ,  H03K4/52

CPC classification number: H03K3/013 ,  H03K3/2821 ,  H03K4/52

Abstract: A multivibrator circuit comprising two transistors and a capacitor connected across the collector and base of one of the transistors. The said capacitor serves to extend the time required for the reversal of current into a capacitor determining the oscillation frequency of the multivibrator to thereby prevent the generation of high frequency noise.

Abstract translation: 一种多谐振荡器电路，包括两个晶体管和连接在一个晶体管的集电极和基极两端的电容器。 所述电容器用于延长将电流反转到确定多谐振荡器的振荡频率的电容器中所需的时间，从而防止产生高频噪声。

公开(公告)号：GB1294617A

公开(公告)日：1972-11-01

申请号：GB1406571

申请日：1971-05-10

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  NABAE MITSUO

IPC: H04N5/10 ,  H04N5/213

Abstract: 1294617 Television MATSUSHITA ELECTRONICS CORP 10 May 1971 14065/71 Heading H4F A sync. from video signal separating circuit comprises a sync. separating transistor 1 having its base connected to an input terminal 2 and emitter to ground with either the base (as shown) or the emitter (Fig. 5, not shown) self-biased by a capacitor 6 and a resistor 7, together with a noise gating circuit 10 comprising a Darlington circuit the collector-emitter path of transistor 12 being connected between the input terminal 2 and ground and being rendered conductive by a signal applied at terminal 9, which signal has been amplitude detected from the video signal applied at input 2 and comprises only noise signals having amplitudes greater than that of the sync. signal. The gating period of the Darlington circuit is sufficiently long to completely cover the noise pulse width at input 2 and thus prevent overcharging at the capacitor 6 of the self-biasing circuit. The complete circuit may be included in an integrated semi-conductor circuit.

公开(公告)号：CA952594A

公开(公告)日：1974-08-06

申请号：CA113398

申请日：1971-05-19

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO

IPC: H03K3/282

Abstract: An astable multi-vibrator employed in a vertical oscillator requiring a short duty cycle. It comprises two main transistors, one of which has the emitter connected to a resistor, which is in turn shunted by a resistance lower than its resistance during a period constituting the duty cycle, whereby the duty cycle may be reduced without increasing power consumption.

公开(公告)号：CA948306A

公开(公告)日：1974-05-28

申请号：CA138459

申请日：1972-03-29

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  SUGANO HITOSHI

IPC: H04N9/70

Abstract: A color killer circuit in which means are provided so as to carry out a stable color killing operation free from fluctuations in power supply voltage so that the color killing operation may not be directly affected by the absolute value of the color killer control voltage.

公开(公告)号：CA931232A

公开(公告)日：1973-07-31

申请号：CA108595

申请日：1971-03-24

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO

IPC: H03K3/282

Abstract: A multivibrator circuit comprising a base bias-supplying circuit for a transistor which is connected with at least one diode in parallel with a resistor for obtaining stable temperature and voltage characteristics. This resistor serves to overcome the problem of the cessation of variations in bias voltage directly proportional to the supply voltage which is caused by the insertion of the diode. Thus it is possible to start and stop oscillation of the multivibrator circuit even when the supply voltage is reduced to a considerably lower voltage.

公开(公告)号：CA947857A

公开(公告)日：1974-05-21

申请号：CA136220

申请日：1972-03-03

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  SUGANO HITOSHI

IPC: H04N9/68

Abstract: A chrominance saturation control circuit to permit indirect or DC mode control of chrominance saturation. The connection between the chrominance saturation control knob in a television receiver and the chrominance saturation control circuit can be achieved through wiring which transmits only DC voltage. With this DC controlled chrominance saturation control, the television set may be made less susceptible to external interference compared to the case of using a shielded wiring for directly controlling the chrominance saturation.

公开(公告)号：CA946944A

公开(公告)日：1974-05-07

申请号：CA135722

申请日：1972-02-28

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： WAKAI SHUZO ,  SUGANO HITOSHI

IPC: H04N9/68 ,  H04N9/71

Abstract: A chrominance amplifier circuit, adapted to be formed in a monolithic integrated circuit, in which an automatic gain control function is performed by a circuit arrangement containing no capacitor, the automatic gain control function having no influence on the bandwidth characteristic of the amplifier so that the chrominance amplification operation can be stably performed.