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131. 发明授权

US4363134A Channel selection apparatus 失效
标题翻译：通道选择装置
公开(公告)号：US4363134A
公开(公告)日：1982-12-07
申请号：US168733
申请日：1980-07-14
申请人： Toshinori Murata , Shigeo Matsuura
发明人： Toshinori Murata , Shigeo Matsuura
IPC分类号： H03J7/18 , H03H9/64 , H03J5/02 , H03J7/28 , H04B1/16
CPC分类号： H03J5/0245
摘要： In a channel selection apparatus for a television receiver or FM radio receiver having an electronic tuner, a local oscillation signal of the electronic tuner having a local oscillator which is swept by a voltage sweeping circuit is passed through a comb-shape filter having a SAW element. Peak outputs from the comb-shape filter are counted by a presettable counter. When the count reaches a preset count, the sweeping operation of the voltage sweeping circuit is stopped to select a desired channel. A portion of the peaks of the comb-shape filter characteristic is attenuated and a gap appearing at the attenuated portion is detected by the frequency sweep of the local oscillation signal with a change in time interval. The detection signal is compared to discriminate the first pulse necessary for the channel selection.
摘要翻译：在具有电子调谐器的电视接收机或FM无线电接收机的频道选择装置中，具有被电压扫描电路扫过的本地振荡器的电子调谐器的本地振荡信号通过具有SAW元件的梳状滤波器。来自梳状滤波器的峰值输出由计数器计数。当计数达到预设计数时，停止电压扫描电路的扫描操作以选择所需的通道。梳状滤波器特性的峰值的一部分被衰减，并且通过随时间间隔的变化的本地振荡信号的频率扫描来检测在衰减部分出现的间隙。将检测信号进行比较，以区分通道选择所需的第一脉冲。

132. 发明授权

US4352206A Comparison arrangement for a digital tuning system 失效
标题翻译：数字调谐系统的比较布置
公开(公告)号：US4352206A
公开(公告)日：1982-09-28
申请号：US242619
申请日：1981-03-11
申请人： Felix Aschwanden
发明人： Felix Aschwanden
IPC分类号： H03J7/18 , H03J5/00 , H03J5/02 , H03J7/06 , H04B1/26
CPC分类号： H03J7/06 , H03J5/0263
摘要： In a tuning system including a station selector for generating a digital word representative of a selected channel, a counter for counting periods of a local oscillator signal during a measurement interval to generate a digital word representing the accumulated count and a comparator for generating control signals for the local oscillator in accordance with the deviation between the station-representative and count-representative digital words, apparatus is provided to enable the number of bits in the count-representative digital word to be less than the number of bits in the station-representative digital word. Such an arrangement is therefore particularly useful when it is desired to incorporate a large portion of the tuning system in a relatively inexpensive microcomputer in which only a relatively small number of bits, e.g., 8, can be dynamically processed. Specifically, the tuning system operates in coarse, medium and fine tuning steps. During each step a predetermined group of bits derived from the station-representative digital word are selected for comparison and the duration of the measurement interval is set in accordance with the bits selected.
摘要翻译：在包括用于产生表示所选择的信道的数字字的站选择器的调谐系统中，用于在测量间隔期间计数本地振荡器信号的周期以产生表示累加计数的数字字的计数器，以及用于产生控制信号的比较器本地振荡器根据站代表和计数代表数字字之间的偏差，提供装置以使计数代表数字字中的位数小于站代表数字字中的位数字。因此，当期望将调谐系统的大部分并入相对便宜的微型计算机中时，这样的布置特别有用，其中仅可以动态地处理例如8的相对较少数量的位。具体来说，调谐系统以粗调，中等和微调的步骤运行。在每个步骤期间，选择从站代表数字字导出的预定的位组，用于比较，并且根据所选择的位来设置测量间隔的持续时间。

133. 发明授权

US4352205A Tuning system 失效
标题翻译：调音系统
公开(公告)号：US4352205A
公开(公告)日：1982-09-28
申请号：US150296
申请日：1980-05-16
申请人： Masaki Kato , Katsumi Tobita
发明人： Masaki Kato , Katsumi Tobita
IPC分类号： H03J7/28 , H03J5/02 , H03J7/02 , H03J7/06 , H03J7/18 , H03J5/24
CPC分类号： H03J7/065 , H03J5/0281
摘要： A tuning system comprising a memory for storing therein local oscillation frequencies of a plurality of channels to be received and an intermediate frequency, a first control loop circuit for controlling an oscillation frequency of a controlled oscillator on the basis of one local oscillation signal stored in said memory, and a second control loop circuit for controlling a controlled oscillator in such a manner as to render the intermediate frequency of the tuner itself constant on the basis of the intermediate frequency stored in said memory after said first control loop circuit is locked.
摘要翻译：一种调谐系统，包括存储器，用于存储要接收的多个信道的本地振荡频率和中频;第一控制环路电路，用于基于存储在所述接收的一个本地振荡信号来控制受控振荡器的振荡频率存储器和用于控制受控振荡器的第二控制回路电路，以便在所述第一控制环电路被锁定之后，基于存储在所述存储器中的中频来使调谐器本身的中频恒定。

134. 发明授权

US4344186A Tuning circuit 失效
标题翻译：调谐电路
公开(公告)号：US4344186A
公开(公告)日：1982-08-10
申请号：US182930
申请日：1980-09-02
申请人： Kian K. Ong
发明人： Kian K. Ong
IPC分类号： H03J7/18 , H03J5/24 , H04B1/16
CPC分类号： H03J5/244
摘要： In a tuning circuit for a receiver which is continuously tunable over a number of wave ranges by means of a setting circuit, the receiver having an automatic wave range change-over, the tuning voltage is obtained from a subtracting circuit in which a changeable constant voltage is subtracted from a setting voltage which was obtained by means of the setting circuit, this changeable constant voltage depending on the wave range for adaptation of the wave range limits to the wave range.
摘要翻译：在用于通过设置电路在多个波段上连续可调谐的接收机的调谐电路中，接收机具有自动波段转换，调谐电压从减法电路获得，其中可变恒定电压从通过设定电路获得的设定电压中减去该可变定的恒定电压，这取决于波段的范围用于适应波浪范围的波长范围。

135. 发明授权

US4285066A Receiver having a search tuning circuit 失效
标题翻译：接收机具有搜索调谐电路
公开(公告)号：US4285066A
公开(公告)日：1981-08-18
申请号：US110290
申请日：1980-01-07
申请人： Theodorus H. M. Van Deursen
发明人： Theodorus H. M. Van Deursen
IPC分类号： H03J7/02 , H03J1/00 , H03J5/02 , H03J7/18 , H04B1/26 , H03J7/22
CPC分类号： H03J7/18 , H03J1/005
摘要： In a receiver having a search tuning circuit by means of which a group of tuning data, corresponding to predetermined transmitters, can be searched, a frequency detector is used in addition to a field strength detector to enable a rapid restarting of a search action if the search stopped at a transmitter having a frequency which deviates somewhat from the desired frequency.
摘要翻译：在具有搜索调谐电路的接收机中，通过该搜索调谐电路可以搜索对应于预定发射机的一组调谐数据，除了场强检测器之外还使用频率检测器，以便能够快速重新启动搜索动作，如果搜索在具有偏离期望频率稍微偏离的频率的发射机处停止。

136. 发明授权

US4271530A Receiver having a frequency synthesizing circuit 失效
标题翻译：具有频率合成电路的接收机
公开(公告)号：US4271530A
公开(公告)日：1981-06-02
申请号：US941370
申请日：1978-09-12
申请人： Theodorus H. M. van Deursen
发明人： Theodorus H. M. van Deursen
IPC分类号： H03L7/18 , H03J5/02 , H03J7/02 , H03J7/06 , H03J7/18 , H03J7/28 , H04B1/26
CPC分类号： H03J5/0272 , H03J7/06
摘要： In a receiver having a frequency synthesizing circuit, the deviation of the tuning of the intermediate-frequency section relative to a standard tuning is periodically measured by means of a measuring circuit, which circuit then causes a change in the frequency of a local oscillator for correcting said deviation.
摘要翻译：在具有频率合成电路的接收机中，通过测量电路周期性地测量中频部分相对于标准调谐的调谐偏差，该电路然后引起用于校正的本地振荡器的频率的变化说偏差。

137. 发明授权

US4270213A Sequential channel selector system 失效
标题翻译：顺序通道选择器系统
公开(公告)号：US4270213A
公开(公告)日：1981-05-26
申请号：US47385
申请日：1979-06-11
申请人： Terrence F. Falk , Terrence R. Schultz , James E. Hoffmann
发明人： Terrence F. Falk , Terrence R. Schultz , James E. Hoffmann
IPC分类号： H03J7/28 , H04B1/40 , H03J7/18
CPC分类号： H03J7/28 , H04B1/40
摘要： A channel selector system in a radio for sequentially selecting one of a plurality of channels and rapidly scanning through any restricted channels such that the restricted channels are not displayed and appear to be skipped. The radio includes a frequency synthesizer for generating a predetermined frequency associated with each selected channel and the channel selector system has a signal generator which causes the frequency synthesizer to sequentially either step or scan through the channels including some channels which may be restricted. The generator provides an output coded signal to indicate selection of a restricted channel which is decoded by decoding circuitry. A scan timer is responsive to the decoded signal to cause the signal generator to rapidly scan through restricted channels. A latching circuit latches a signal generator input during rapid scanning through restricted channels until the system advances to the next unrestricted channel. Related methods are disclosed.
摘要翻译：无线电中的频道选择器系统，用于顺序地选择多个频道中的一个，并通过任何受限频道快速扫描，使得受限频道不被显示并且似乎被跳过。无线电设备包括用于产生与每个所选择的信道相关联的预定频率的频率合成器，并且频道选择器系统具有信号发生器，其使得频率合成器顺序地通过包括可能被限制的一些信道的信道的步进或扫描。发生器提供输出编码信号以指示由解码电路解码的受限通道的选择。扫描定时器响应于解码信号，使得信号发生器通过受限通道快速扫描。锁存电路在快速扫描期间通过受限通道锁存信号发生器输入，直到系统进入下一个无限制通道。公开了相关方法。

138. 发明授权

US4249255A Continuous tuning arrangement for a multiband television receiver 失效
标题翻译：多频电视接收机的连续调谐装置
公开(公告)号：US4249255A
公开(公告)日：1981-02-03
申请号：US965217
申请日：1978-11-30
申请人： Thomas E. Molinari
发明人： Thomas E. Molinari
IPC分类号： H03J7/18 , H03J3/18 , H03J5/24 , H04B1/16
CPC分类号： H03J5/244
摘要： A tuning system includes a resistive element coupled between two terminals and a movable contact which is moved along the resistive element to determine the tuning position. A switching arrangement selectively couples predetermined voltages to the terminals as a function of the position of the movable contact so that a tuning voltage for tuning all the channels in the low VHF, high VHF and UHF bands is generated at the movable contact as it is continuously and consecutively moved along the resistive element.
摘要翻译：调谐系统包括耦合在两个端子之间的电阻元件和沿电阻元件移动以确定调谐位置的可动触点。开关装置根据可动触点的位置选择性地将预定的电压耦合到端子，使得用于调谐低VHF，高VHF和UHF频带中的所有通道的调谐电压在可动触点处被连续地产生并沿电阻元件连续移动。

139. 发明授权

US4247952A Signal receiving apparatus 失效
标题翻译：信号接收装置
公开(公告)号：US4247952A
公开(公告)日：1981-01-27
申请号：US938384
申请日：1978-08-31
申请人： Michio Shibuya
发明人： Michio Shibuya
IPC分类号： H03J7/18 , H03J5/00 , H03J5/02 , H04B1/06 , H04B1/10 , H04B1/16 , H04B1/26
CPC分类号： H03J5/0263 , H03J5/0281
摘要： Improvements in signal receiving apparatus of the type including a tuning stage having a presettable channel selecting storage device for storing selected channel identity signals representing predetermined channels to which the tuning stage is tunable and wherein any of the stored channel identity signals is selectively read out so as to control the tuning stage to be tuned to the channel represented by the read out channel identity signal. The improvements comprise a presettable memory device for storing control signals associated with the respective predetermined channels, these control signals being used to control at least one operating condition of the signal receiving apparatus. A selectively operable preset circuit generates at least one control signal for storage in the memory device when the tuning stage is tuned to an associated channel during a preset operation. A particular stored channel identity signal is read out from the storage device and, concurrently therewith, at least one control signal associated with the channel represented by the read out channel identity signal is read out of the memory device. The read out channel identity signal determines the channel to which the tuning stage is tuned, and the read out control signal, or signals, determines the operating condition of the signal receiving apparatus for that channel.
摘要翻译：该类型的信号接收装置的改进包括具有可预置频道选择存储装置的调谐级，该预置频道选择存储装置用于存储表示调谐级可调谐的预定声道的所选频道标识信号，并且其中选择性地读出存储的频道标识信号，以便以控制调谐级被调谐到由读出的通道识别信号表示的通道。这些改进包括用于存储与各个预定信道相关联的控制信号的可预设存储器装置，这些控制信号用于控制信号接收装置的至少一个操作状态。当在预设操作期间调谐级被调谐到相关联的通道时，选择性操作的预置电路产生至少一个控制信号以存储在存储器件中。从存储装置中读出特定存储的信道标识信号，并且同时从存储装置读出与由读出的信道标识信号表示的信道相关联的至少一个控制信号。读出的通道识别信号确定调谐级调谐到的通道，读出的控制信号或信号确定该通道的信号接收装置的工作状态。

140. 发明授权

US4222121A Frequency synthesizer type receiver having a channel selection device 失效
标题翻译：具有频道选择装置的频率合成器型接收机
公开(公告)号：US4222121A
公开(公告)日：1980-09-09
申请号：US957676
申请日：1978-11-06
申请人： Takehiko Matsumoto , Hiroshi Haba
发明人： Takehiko Matsumoto , Hiroshi Haba
IPC分类号： H03L7/18 , H03J7/06 , H03J7/18 , H04B1/26 , H04B1/34
CPC分类号： H03J7/065
摘要： A frequency synthesizer type receiver having a channel selection device which comprises a tuning sensor (40) generating a stop pulse when a radio wave from a broadcasting station is caught, a control unit (34) for controlling channel selection, and a designation signal generator (36) for supplying clock signals to the control unit (34). Upon receipt of a start pulse the designation signal generator (36) starts generating clock signals. In response to the clock signals the control unit (34) controls the frequency tuning of a frequency synthesizer receiver. When the receiver catches a radio wave from a broadcasting station, the tuning sensor (40) supplies a stop pulse to the designation signal generator (36). Upon receipt of the stop pulse the designation signal generator (36) stops generating clock signals. Then the channel selection is completed.
摘要翻译：一种具有频道选择装置的频率合成器型接收机，包括当来自广播电台的无线电波被捕获时产生停止脉冲的调谐传感器（40），用于控制频道选择的控制单元（34）和指定信号发生器 36），用于向控制单元（34）提供时钟信号。当接收到起始脉冲时，指定信号发生器（36）开始产生时钟信号。响应于时钟信号，控制单元（34）控制频率合成器接收机的频率调谐。当接收器从广播站捕获无线电波时，调谐传感器（40）向指定信号发生器（36）提供停止脉冲。在接收到停止脉冲时，指定信号发生器（36）停止产生时钟信号。然后通道选择完成。

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