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公开(公告)号：US3906351A
公开(公告)日：1975-09-16
申请号：US43438374
申请日：1974-01-18
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER
CPC classification number: H03J7/10 , H03J5/0254 , H03M1/74 , H04N5/44582
Abstract: A television channel address system incorporates ten touch buttons for digitally addressing a tuner to select a desired television channel. The numerical channel command is converted into an analog tuning voltage for tuning an associated voltage controlled tuner. Automatic fine tuning voltage developed in the television receiver modifies the developed analog tuning voltage for precisely placing the tuner on the desired channel frequency.
Abstract translation: 电视频道地址系统包含十个触摸按钮，用于数字地寻址调谐器以选择所需的电视频道。 数字通道命令被转换成模拟调谐电压，用于调谐相关的压控调谐器。 在电视接收机中开发的自动微调电压修改了开发的模拟调谐电压，以将调谐器精确地放置在期望的频道频率上。
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公开(公告)号：US3602822A
公开(公告)日：1971-08-31
申请号：US3602822D
申请日：1969-05-29
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER , BEAN JEROME BENJAMIN JR
CPC classification number: H03J5/0227
Abstract: AN ELECTRONICALLY CONTROLLED TUNER FOR A TELEVISION RECEIVER IS AUTOMATICALLY TUNED FROM ONE TO ANOTHER OF PRESELECTED CHANNELS. A CONTROL CIRCUIT FOR CHANNEL SELECTION IS ADAPTED TO ENERGIZE A PLURALITY OF TUNER CONTROL TERMINALS AND CHANNEL IDENTIFICATION TERMINALS EACH CORRESPONDING TO A PARTICULAR CHANNEL. THE CONTROL CIRCUIT IS ACTUATABLE TO AUTOMATICALLY CHANGE THE TUNING OF THE RECEIVER TO A SELECTED CHANNEL AND INCLUDES A COUNTER WHICH IS ENERGIZED BY AN OSCILLATOR. MEANS ARE RESPONSIVE TO SUCCESSIVE COUNTS PRODUCED BY THE COUNTER TO APPLY A CONTROL SIGNAL TO A DIFFERENT ONE OF SAID TUNER CONTROL AND CHANNEL IDENTIFICATION TERMINALS FOR CAUSING SAID RECEIVER TO BE TUNED FROM CHANNEL TO CHANNEL IN SUCCESSION WITH EACH CHANNEL BEING IDENTIFIED. THE MEANS ARE RESPONSIVE TO COUNTS CORRESPONDING TO CHANNELS WITHIN THE PRESELECTED GROUP FOR DISABLING THE OSCILLATOR EACH TIME THE COUNTER REACHES ONE OF THE COUNTS.
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公开(公告)号：US3624512A
公开(公告)日：1971-11-30
申请号：US3624512D
申请日：1969-06-02
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER
Abstract: A television receiver includes automatic fine-tuning circuits which are coupled to a voltage responsive variable capacitance device in the heterodyne local oscillator resonant circuit to control the oscillator frequency. The automatic fine-tuning circuits include a tunable resonant discriminator circuit and provide an output voltage having a magnitude determined by the frequency deviation of the output signal from the television mixer stage from the resonant frequency of the discriminator circuit. The discriminator circuit is tuned over a band of frequencies by varying the voltage across a voltage-responsive variable capacitance device in the discriminator circuit.
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Patent Agency Ranking
公开(公告)号：US3928808A
公开(公告)日：1975-12-23
申请号：US43440274
申请日：1974-01-18
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER
CPC classification number: H03J7/10 , H03J5/0254
Abstract: A voltage controlled television tuner may be tuned to each of the available channels within its tuning range by providing first and second analog voltage generators responsive to digital channel commands for producing the requisite tuning voltages. The first analog voltage generator provides one or more output voltage ranges, each range corresponding to, for example, a decade of channel frequencies. The second analog voltage generator subdivides the voltages provided by the first generator into voltages corresponding to individual channels, providing thereby the tuning voltages for the voltage controlled tuner.
Abstract translation: 电压控制的电视调谐器可以在其调谐范围内调谐到每个可用通道，通过提供响应于数字通道命令的第一和第二模拟电压发生器来产生必要的调谐电压。 第一模拟电压发生器提供一个或多个输出电压范围，每个范围对应于例如十年的信道频率。 第二模拟电压发生器将由第一发生器提供的电压细分为对应于各个通道的电压，由此提供用于压控调谐器的调谐电压。
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6.发明授权Signal seeking system for radio receivers with tuning indicating circuitry for controlling the signal seeking 失效用于无线电接收机的信号搜索系统，用于显示用于控制信号搜索的电路
公开(公告)号：US3632864A
公开(公告)日：1972-01-04
申请号：US3632864D
申请日：1969-06-02
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER
Abstract: A television signal seeking system includes a UHF tuner driven by a bidirectional motor. The motor windings are energized through transistor switching circuits which are coupled to signal sensing circuits. Once the motor switch circuits are actuated the motor will drive the tuner through the television frequency spectrum until a stopping signal is applied to the motor switch circuits to deenergize the motor. The stopping signal is developed in response to (1) the presence of a train of horizontal sync pulses; (2) the presence of a predetermined level of automatic gain control voltage; and, (3) the presence of a change of automatic fine tuning correction voltage, when the tuning elements are driven into the pull-in range of the automatic fine tuning circuits.
Abstract translation: 电视信号搜索系统包括由双向电机驱动的UHF调谐器。 电机绕组通过耦合到信号感测电路的晶体管开关电路通电。 一旦电动机开关电路被启动，电动机将通过电视频谱驱动调谐器，直到停止信号被施加到电动机开关电路以使电动机通电。 响应于（1）存在一系列水平同步脉冲而产生停止信号; （2）存在预定水平的自动增益控制电压; 以及（3）当调谐元件被驱动到自动微调电路的拉入范围内时，存在自动微调校正电压的变化。
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公开(公告)号：US3914696A
公开(公告)日：1975-10-21
申请号：US43440774
申请日：1974-01-18
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER
CPC classification number: H03J7/12 , H03J5/0254 , H03J7/10
Abstract: Voltage from a reference supply is subdivided to provide a plurality of channel representative tuning voltages for a voltage controlled television tuner. A portion of an automatic fine tuning voltage developed in the television receiver is coupled to the reference voltage supply for providing a feedback voltage to maintain the television receiver on the desired channel frequency. Addition of the portion of the automatic fine tuning voltage and the reference supply voltage is such that the portion of the automatic fine tuning voltage provided to the higher frequency channels is greater than the portion thereof supplied to the lower frequency channels.
Abstract translation: 来自参考电源的电压被细分以为压控电视调谐器提供多个代表性的调谐电压。 在电视接收机中产生的自动微调电压的一部分耦合到参考电压源，以提供反馈电压，以将电视接收机维持在期望的频道频率上。 自动微调电压和参考电源电压的一部分的添加使得提供给较高频率信道的自动微调电压的部分大于其提供给较低频率信道的部分。
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公开(公告)号：US3886307A
公开(公告)日：1975-05-27
申请号：US44148774
申请日：1974-02-11
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER , CHRISTENSEN DON EDWARD
CPC classification number: H03J5/0254 , H02M2001/0032 , H04N5/63 , Y02B70/16
Abstract: A television receiver having push buttons numerically labelled 0 through 9 for operatively selecting a television channel is switched on or off without the aid of a particularized manual onoff switch. Depression of channel selection push buttons activates the power to the main portion of the television receiver concurrently setting it to a desired television channel. Further depression of the push buttons selecting a particular number which does not correspond to any existent channel operatively switches the main portion of the television receiver off.
Abstract translation: 具有数字标记为0至9的用于可操作地选择电视频道的按钮的电视接收机被开启或关闭，而无需特定的手动开 - 关切换。 频道选择按钮的抑制激活电视接收机主要部分的电源，同时将其设置为所需的电视频道。 选择与任何现有通道不对应的特定号码的按钮的进一步按压可操作地切换电视接收机的主要部分。
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公开(公告)号：US3662270A
公开(公告)日：1972-05-09
申请号：US3662270D
申请日：1969-07-16
Applicant: RCA CORP
Inventor： EVANS WAYNE WHEELER
CPC classification number: H03J5/0227
Abstract: In a television receiver having an electronically controlled tuner, a circuit for automatically tuning the receiver to a particular one of the channels, when, for any reason, the electronic tuning system is disconnected from the receiver.
Abstract translation: 在具有电子控制调谐器的电视接收机中，当由于任何原因使电子调谐系统与接收器断开连接时，用于将接收机自动调谐到特定通道的电路。
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