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公开(公告)号：US4085371A
公开(公告)日：1978-04-18
申请号：US716655
申请日：1976-08-23
申请人： Takao Mogi , Koji Morita , Hisao Okada
发明人： Takao Mogi , Koji Morita , Hisao Okada
CPC分类号： H03J7/06 , H03J5/0263
摘要： In a channel selecting apparatus for a television receiver having an electronic tuning tuner for changing the receiving frequency in accordance with an analog control signal applied thereto; a memory has a plurality of addresses for storing respective digital codes each identifying a respective channel, and such addresses in the memory are selectively activated so as to effect read out of the respective channel identifying digital code to a digital-to-analog converter which converts the same into a respective analog control signal for the tuner. Deviation of the receiving frequency, as established in response to the analog control signal, from the correct receiving frequency for the channel identified by the digital code then being read out of the memory is detected, and in response to a detected deviation the ditial code being received by the digital-to-analog converter is automatically modified or changed in the sense for removing said deviation and thereby effecting a fine tuning operation. In a preferred embodiment, when the detected deviation of the established receiving frequency from the correct receiving frequency exceeds a predetermined amount, the resulting modified digital code is stored in the memory in place of the read out digital code resulting in such deviation, thereby to ensure that the stored digital codes will not, with time, result in respective receiving frequencies that are outside the pull-in range of the automatic fine-tuning operation.
摘要翻译： 在具有电子调谐调谐器的电视接收机的频道选择装置中，根据施加的模拟控制信号来改变接收频率; 存储器具有多个地址，用于存储每个识别相应通道的各个数字代码，并且选择性地激活存储器中的这些地址，以便将识别数字代码的各个通道的读出从数模转换器转换成数模转换器 相同的调谐器的模拟控制信号。 检测到响应于模拟控制信号的接收频率的偏差从由数字代码识别的信道的正确接收频率从存储器读出，并且响应于检测到的偏差，初始码为 由数 - 模转换器接收的信号在去除所述偏差的意义上被自动修改或改变，从而进行微调操作。 在优选实施例中，当所检测到的接收频率与正确接收频率的偏差超过预定量时，所得到的经修改的数字码被存储在存储器中，代替读出的数字码导致这种偏差，从而确保 存储的数字码将随着时间而不会导致在自动微调操作的拉入范围之外的各个接收频率。
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2.发明授权Channel selecting apparatus for a television receiver with an electronic tuner 失效具有电子调谐器的电视接收机的频道选择装置
公开(公告)号：US4085372A
公开(公告)日：1978-04-18
申请号：US716702
申请日：1976-08-23
申请人： Takao Mogi , Hisao Okada
发明人： Takao Mogi , Hisao Okada
CPC分类号： H03J5/0263 , H03M1/827
摘要： In a channel selecting apparatus for a television receiver having a tuner with a voltage-controlled variable reactance device as its tuning element; digital codes representing or identifying respective channels are stored at respective addresses in a memory, and a digital-to-analog converter provides an analog control voltage for the variable reactance device in correspondence to each digital code selectively read out of the memory in a channel selecting mode of the apparatus. Further, in a programming mode of the apparatus, the changing digitally coded counts of a counter which is counting sweep pulses are applied to the digital-to-analog converter for similarly controlling the variable reactance device and selected counts of the counter, for example, those which result in the appearance on the receiver screen of pictures or test patterns broadcast by selected television stations or channels, are written at selected addresses in the memory as the channel identifying digital codes. Preferably, the digital-to-analog converter is constituted by a pulse-width modulator which produces a chain of pulses at a constant repetition rate with the widths of such pulses being varied in dependence on the absence of coincidence between a circulating digital code and the digitally coded count from the counter as established either by read out of a channel identifying digital code from the memory or by counting of the sweep pulses, and the output of the modulator is passed through a low-pass filter to provide the analog control voltage in dependence on the modulated pulse width.
摘要翻译： 在具有电压控制可变电抗装置的调谐器的电视接收机的频道选择装置中作为其调谐元件; 代表或识别各个通道的数字代码被存储在存储器中的相应地址处，并且数模转换器根据在频道选择中选择性地从存储器读出的每个数字代码，为可变电抗装置提供模拟控制电压 设备的模式。 此外，在该装置的编程模式中，对扫描脉冲进行计数的计数器的改变的数字编码计数被施加到数模转换器，用于类似地控制可变电抗装置和计数器的选定计数，例如， 导致在接收机屏幕上出现的图片或由所选择的电视台或频道广播的测试图案的那些在被选择的地址写入存储器中，作为识别数字代码的频道。 优选地，数模转换器由脉冲宽度调制器构成，该脉冲宽度调制器以恒定的重复频率产生脉冲链，其中这些脉冲的宽度根据循环数字码和 通过从存储器中读出识别数字代码的通道或通过扫描脉冲的计数来建立来自计数器的数字编码计数，并且调制器的输出通过低通滤波器以提供模拟控制电压 依赖于调制脉宽。
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公开(公告)号：US3944982A
公开(公告)日：1976-03-16
申请号：US495296
申请日：1974-08-06
申请人： Takao Mogi , Hisao Okada
发明人： Takao Mogi , Hisao Okada
IPC分类号： G08C19/22 , H03G1/02 , H03J1/22 , H03J9/00 , H03J9/04 , H04Q9/14 , H04Q9/16 , H04Q9/00 , H03K5/20
摘要： A remote control system for selectively controlling plural functions of electric apparatus comprising a combination of an improved transmitter for generating a command signal of a single frequency which is transmitted intermittently for a plurality of intervals of time, the length of each of which is determined in response to selection of one of the plural functions, and a receiver for receiving the command signal and producing a control signal for controlling the selected function in response to the length of each of the intervals and to the number of the intervals of the received command signal.
摘要翻译： 一种用于选择性地控制电气设备的多个功能的遥控系统，包括：改进的发射机的组合，用于产生在多个时间间隔间歇地发送的单个频率的命令信号，每个时间间隔的长度被响应地确定 选择多个功能之一，以及接收器，用于接收命令信号并产生用于响应于每个间隔的长度和接收到的命令信号的间隔的数量来控制所选择的功能的控制信号。
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公开(公告)号：US4280139A
公开(公告)日：1981-07-21
申请号：US83415
申请日：1979-10-10
申请人： Takao Mogi , Yoshio Ishigaki , Hisao Okada
发明人： Takao Mogi , Yoshio Ishigaki , Hisao Okada
摘要： A muting circuit for a television receiver of the type having a tuner which is operative to select a desired channel in accordance with a channel selection operation to produce a channel select signal representing the selected channel, a detector circuit for detecting whether a video signal is present or not, a muting signal generator circuit supplied with an output from the detector circuit and the channel select signal representing the selection of a predetermined channel to produce a muting signal when the predetermined channel is selected but no output is produced by the detector circuit, and a muting circuit coupled to a low frequency signal transmission path in response to the muting signal from the muting signal generator circuit to cut off or attenuate the transmission of a low frequency signal.
摘要翻译： 一种用于具有调谐器的类型的电视接收机的静噪电路，该调谐器可操作以根据频道选择操作选择所需频道，以产生表示所选频道的频道选择信号，检测电路是否存在视频信号 或者不是，提供有来自检测器电路的输出的静噪信号发生器电路和表示预定通道的选择的通道选择信号，以在选择预定通道但没有由检测器电路产生输出时产生静噪信号，以及 响应于来自静噪信号发生器电路的静噪信号切断或衰减低频信号的传输，耦合到低频信号传输路径的静噪电路。
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公开(公告)号：US4127822A
公开(公告)日：1978-11-28
申请号：US752427
申请日：1976-12-20
申请人： Takao Mogi , Hisao Okada
发明人： Takao Mogi , Hisao Okada
CPC分类号： H03J7/28 , H03J5/0263
摘要： A tuning system for digitally controlled electronically tuned tuner with automatic fine tuning (AFT) constantly operable to hold the tuner at a predetermined optimum frequency setting, especially a television channel. A reversible counter provides the digital signal to control the tuning of the tuner and is, itself, deliberately shifted from one setting to another by pulses from a source, such pulses being applied to the UP input terminal of the counter as the up-tuning pulses to shift the tuner frequency higher. Pulses from the same source are also used as down-tuning pulses when applied to the DOWN input terminal of the tuning pulses to a lower frequency supplied to two AFT AND circuits. One output logic up-tuning instruction signal E.sub.U of the AFT circuit enables the up-tuning AFT AND circuit only in a certain sub-range below the desired frequency. The other output logic down-tuning instruction signal E.sub.D of the AFT circuit enables the other AFT AND circuit only in a certain sub-range above the desired frequency. Consequently, deliberate application of up-or-down-tuning pulses to the UP or DOWN terminals changes the count as desired, being only partially counteracted by the lower frequency, AFT-controlled pulses to the opposite counter terminal.
摘要翻译： 一种用于数字控制的电子调谐调谐器的调谐系统，具有自动微调（AFT），其经常可操作地将调谐器保持在预定的最佳频率设置，特别是电视频道。 可逆计数器提供数字信号以控制调谐器的调谐，并且本身通过来自源的脉冲从一个设置故意地移位到另一个设置，这样的脉冲被施加到计数器的UP输入端作为上调脉冲 使调谐器频率更高。 当将调谐脉冲的DOWN输入端施加到提供给两个AFT AND电路的较低频率时，来自相同源的脉冲也用作下调脉冲。 AFT电路的一个输出逻辑上调指令信号EU只能在低于期望频率的某个子范围内进行上调AFT AND电路。 AFT电路的另一个输出逻辑降频指令信号ED只能在所需频率之上的某个子范围内使其他AFT AND电路。 因此，向UP或DOWN端子故意施加上升或下降调谐脉冲根据需要改变计数，仅通过较低频率AFT控制的脉冲部分抵消到相对的计数器端子。
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公开(公告)号：US4251812A
公开(公告)日：1981-02-17
申请号：US953494
申请日：1978-10-23
申请人： Hisao Okada , Takao Mogi , Shigetoshi Murakami
发明人： Hisao Okada , Takao Mogi , Shigetoshi Murakami
摘要： A remote control apparatus is constituted by a command encoding device and a command decoding device. In the command encoding device, a timing pulse generator indicates the beginning and end of a time interval of a length which is a function of a command to be encoded, a pulse of the first duration shorter than said time interval is initiated in response to said beginning of the time interval, a pulse of a second duration different from said first duration and shorter than said time interval is initiated in response to said end of the time interval, and said pulses of said first and second duration respectively, are sequentially transmitted in the command decoding device, upon the receipt of a pulse of said first duration followed by a pulse of said second duration, a first indication is produced in response to the receipt of said pulse of the first duration and a second indication is produced in response to the receipt of said pulse of the second duration, and a device provides a value which varies as a function of the length of time between each said second indication which immediately precedes it, whereupon, a command signal is produced as a function of said value.
摘要翻译： 遥控装置由命令编码装置和命令解码装置构成。 在命令编码装置中，定时脉冲发生器指示作为要编码的命令的函数的长度的时间间隔的开始和结束，响应于所述时间间隔开始比所述时间间隔短的第一持续时间的脉冲 响应于所述时间间隔的结束，启动与所述第一持续时间不同的第二持续时间并且短于所述时间间隔的第二持续时间的脉冲，并且所述第一和第二持续时间的所述脉冲分别以 所述命令解码装置在接收到所述第一持续时间的脉冲之后是所述第二持续时间的脉冲时，响应于接收到所述第一持续时间的所述脉冲而产生第一指示，并且响应于 接收到第二持续时间的所述脉冲，并且设备提供随每个所述第二指示之间的时间长度而变化的值， 因此，产生作为所述值的函数的命令信号。
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7.发明授权Channel selecting apparatus with automatic rewriting of channel identifying codes in a memory 失效具有在存储器中自动重写频道识别码的频道选择装置
公开(公告)号：US4127821A
公开(公告)日：1978-11-28
申请号：US784599
申请日：1977-04-04
申请人： Hisao Okada , Takao Mogi
发明人： Hisao Okada , Takao Mogi
CPC分类号： H03J7/28 , H03J5/0263 , H03J7/06
摘要： In a channel selecting apparatus for a television receiver having an electronic tuning tuner for changing the receiving frequency in accordance with an analog control signal applied thereto; a memory is provided with a plurality of addresses at which respective digital codes each intended to identify a respective broadcast channel are selectively stored or written in a programming mode of the apparatus, and, in a channel selecting mode of the apparatus, a selected channel identifying digital code is read out of the memory to a digital-to-analog converter which converts the same into a respective analog control signal for tuning the tuner to a receiving frequency. Any deviation of the receiving frequency, as established in response to the analog control signal, from the transmitting frequency for the channel identified by the digital code then being read out of the memory is detected, and in response thereto the digital code being applied to the digital-to-analog converter is modified or changed in the sense for removing the deviation and thereby effecting a fine tuning operation. When, in the channel selecting mode, the detected deviation of the established receiving frequency from the transmitting frequency exceeds a predetermined amount, the resulting modified digital code may be automatically stored or rewritten in the memory in place of the read out digital code resulting in such deviation. The writing of digital codes in the memory in the programming mode and the rewriting of modified digital codes in the memory in the channel selecting mode are permitted only if, at the time of such writing or rewriting, there is being received a broadcast signal with a transmitted frequency corresponding to the receiving frequency established by the digital code to be written or rewritten in the memory.
摘要翻译： 在具有电子调谐调谐器的电视接收机的频道选择装置中，根据施加的模拟控制信号来改变接收频率; 存储器被提供有多个地址，在该地址处，各自旨在标识相应广播频道的数字代码被选择性地存储或写入设备的编程模式，并且在设备的频道选择模式中，选择的频道标识 将数字代码从存储器中读出到数模转换器，其将其转换成相应的模拟控制信号，以将调谐器调谐到接收频率。 检测到响应于模拟控制信号所建立的接收频率的任何偏差，从由数字代码识别的信道的发送频率，然后从存储器中读出，并且响应于该数字码被应用于 数字模拟转换器在去除偏差的意义上被修改或改变，从而进行微调操作。 当在通道选择模式中，所检测到的接收频率与发送频率的偏差超过预定量时，所得到的修改数字码可以被自动存储或重写在存储器中，而不是读出的数字码，从而导致 偏差。 只有在这种写入或重写时，才接收到具有广播信号的广播信号，才允许以编程模式在存储器中写入数字代码和在频道选择模式下在存储器中改写修改的数字代码 发送频率对应于由数字代码建立的接收频率，以被写入或重写在存储器中。
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公开(公告)号：US4079420A
公开(公告)日：1978-03-14
申请号：US743008
申请日：1976-11-18
申请人： Takao Mogi , Hisao Okada
发明人： Takao Mogi , Hisao Okada
CPC分类号： H03J5/0263 , H03J7/06
摘要： In a channel selecting apparatus for a television receiver having an electronic tuning tuner for changing the receiving frequency in accordance with an analog control signal applied thereto; a memory has a plurality of addresses for storing respective digital codes each identifying a respective channel and which are selectively activated so as to effect read out of the respective channel identifying digital code to a digital-to-analog converter which converts the same into a respective analog control signal for the tuner. A deviation of the receiving frequency, as established in response to the analog control signal, from the correct receiving frequency for the channel identified by the digital code then being read out of the memory is detected, and, in response to a detected deviation within a pull-in range of an automatic fine tuning (AFT) circuit, the latter changes the digital code applied to the converter in the sense for removing such deviation and thereby achieving the correct tuned condition. Further, when the detected deviation is outside the pull-in range of the AFT circuit, sweeping changes are made in the digital code applied to the converter for cyclically varying the receiving frequency and thereby bringing the latter at least into the pull-in range of the AFT circuit. The modified digital code resulting from the operation of the AFT circuit and/or from the sweeping changes in such code is stored in the memory in place of the read out digital code resulting in such deviation.
摘要翻译： 在具有电子调谐调谐器的电视接收机的频道选择装置中，根据施加的模拟控制信号来改变接收频率; 存储器具有多个地址，用于存储各自的数字代码，每个数字代码识别相应的通道，并且被选择性地激活以便将识别数字代码的各个通道的读出从数模转换器转换成相应的数字模拟转换器 用于调谐器的模拟控制信号。 检测到响应于模拟控制信号而确定的接收频率与由数字代码识别的信道的正确接收频率的偏差，然后从存储器中读出，并且响应于检测到的偏差 自动微调（AFT）电路的拉入范围，后者改变了应用于转换器的数字代码，以消除这种偏差，从而实现正确的调谐条件。 此外，当检测到的偏差在AFT电路的拉入范围之外时，在施加到转换器的数字代码中进行扫描变化，以循环地改变接收频率，从而使后者至少进入到 AFT电路。 由AFT电路的操作和/或来自这种代码的扫描变化而产生的修改后的数字代码被存储在存储器中，代替读出的数字代码导致这种偏差。
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公开(公告)号：US4322855A
公开(公告)日：1982-03-30
申请号：US160622
申请日：1980-06-18
申请人： Takao Mogi , Shigetoshi Murakami , Hisao Okada , Yoshio Ishigaki
发明人： Takao Mogi , Shigetoshi Murakami , Hisao Okada , Yoshio Ishigaki
CPC分类号： H03J9/04
摘要： A remote control apparatus having a commander and a receiver. In a wireless remote control system for a television receiver having a channel command device and a responding device, the channel command device includes a channel selecting circuit for selecting one channel command from among a plurality of predetermined channel commands, a command signal generating circuit for generating a channel command signal corresponding to a selected channel command, and a channel command transmitting circuit having a speaker for transmitting the channel command signal; and the responding device includes a channel command receiving circuit having a microphone for receiving the transmitted channel command signal and a channel command discriminating circuit for discriminating the channel command signal and supplying a channel selecting signal corresponding to the discriminated channel command signal to control a tuning circuit of the television receiver. Further, there is provided in the responding device, a return signal generating circuit for producing a return signal corresponding to the channel command indicated by the channel selecting signal and a return signal transmitting circuit having a speaker for transmitting the return signal, while the channel command device further has a return signal receiving circuit having a microphone for receiving the transmitted return signal, a return signal discriminating circuit for discriminating the return signal and producing a discriminated return signal indicating the channel command to which the return signal corresponds, a comparing circuit for comparing the originally selected channel command and the discriminated return signal, and an indicating circuit connected to the comparing circuit for indicating a coincidence of the originally selected channel command and the discriminated return signal.
摘要翻译： 一种具有指令器和接收器的遥控装置。 在具有信道指令装置和响应装置的电视接收机的无线遥控系统中，信道指令装置包括用于从多个预定信道命令中选择一个信道命令的信道选择电路，用于产生 与选择的频道命令对应的频道命令信号，以及具有用于发送频道命令信号的扬声器的频道命令发送电路; 并且响应装置包括具有用于接收所发送的信道命令信号的麦克风的信道指令接收电路和用于鉴别信道命令信号并提供与鉴别信道命令信号相对应的信道选择信号的信道命令鉴别电路以控制调谐电路 的电视接收机。 此外，在响应装置中设置有返回信号发生电路，用于产生对应于由频道选择信号指示的频道命令的返回信号和具有用于发送返回信号的扬声器的返回信号发送电路，同时信道命令 装置还具有一个具有用于接收所发送的返回信号的麦克风的返回信号接收电路，用于鉴别返回信号并产生指示返回信号对应的信道命令的鉴别返回信号的返回信号鉴别电路，用于比较的比较电路 原始选择的信道命令和鉴别返回信号，以及连接到比较电路的指示电路，用于指示原始选择的信道命令和鉴别返回信号的一致。
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公开(公告)号：US4217552A
公开(公告)日：1980-08-12
申请号：US942531
申请日：1978-09-15
申请人： Takao Mogi , Koji Morita , Hisao Okada
发明人： Takao Mogi , Koji Morita , Hisao Okada
IPC分类号： H03J7/18 , H03J5/02 , H03J7/02 , H03J7/06 , H03J7/28 , H03L7/04 , H03L7/181 , H04N5/44 , H04N5/50 , H04B1/32
CPC分类号： H03J7/06 , H03J5/0263 , H03L7/04
摘要： A digital tuning receiver having an electrically tuneable tuner and an AFT circuit is driven in a unidirectional sweep by the D/A converted output of a reversible counter. The reversible counter continues to count input pulses, and the unidirectional sweep continues until stopped by the reception of a signal which produces a first signal from an AFT frequency discriminator followed within a predetermined time by a second signal of opposite polarity from the AFT frequency discriminator. The number stored in the stopped reversible counter may be further adjusted by AFT signals and stored for later recall. If the second signal is not received within a predetermined time, as occurs with spurious beat signals, the sweep is not stopped but continues until a proper signal is received.
摘要翻译： 具有电可调谐调谐器和AFT电路的数字调谐接收机通过可逆计数器的D / A转换输出在单向扫描中被驱动。 可逆计数器继续对输入脉冲进行计数，并且通过接收从AFT鉴频器产生来自AFT鉴频器的相反极性的第二信号的预定时间产生第一信号的信号，继续直到停止单向扫描。 可以通过AFT信号进一步调整存储在停止的可逆计数器中的数量，并存储以备以后调用。 如果在预定时间内没有接收到第二信号，如同假跳跃信号一样，扫描不停止，直到接收到适当的信号为止。
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