Teletext set-top converter with transparent mode
    31.
    发明授权
    Teletext set-top converter with transparent mode 失效
    具有透明模式的图文电视机顶转换器

    公开(公告)号:US4532540A

    公开(公告)日:1985-07-30

    申请号:US479450

    申请日:1983-03-28

    Inventor: Charles M. Wine

    CPC classification number: H04N9/641

    Abstract: A set-top teletext converter decodes the chroma burst signal of a color television signal with the substantially same amplitude and phase as the burst in the television signal. The teletext signal along with its transparent mode signal are decoded. The decoded teletext signal is then re-encoded as a standard television signal using the decoded burst signal. When switching between the encoded teletext signal and the regular television signal under the control of the transparent mode signal, no color shift is present.

    Abstract translation: 机顶文字转换器以与电视信号中的脉冲串基本相同的幅度和相位来解码彩色电视信号的色度信号。 图文信号及其透明模式信号被解码。 然后,使用解码的突发信号将解码的文字多重信号重新编码为标准电视信号。 当在透明模式信号的控制下在编码的文字信号和常规电视信号之间切换时,不存在颜色偏移。

    Video disc with dynamic stylus cleaning
    33.
    发明授权
    Video disc with dynamic stylus cleaning 失效
    视频光盘与动态触控笔清洁

    公开(公告)号:US4363117A

    公开(公告)日:1982-12-07

    申请号:US128242

    申请日:1980-03-07

    Inventor: Charles M. Wine

    CPC classification number: G11B20/18 G11B21/02 G11B23/505 G11B27/36

    Abstract: A video disc playback system having digital circuitry for detecting degradation in recovered signal. Circuitry is included to determine probable errors in the digital components of signal recovered from the disc record. A digital reference number is generated by storing a valid digital number recovered from the disc and incrementing that number by a constant in accordance with the normal progression of numbers prerecorded on the disc. The recovered numbers are compared with the generated reference numbers to generate an error signal on mismatch. The error signal is used to weight a constant binary number by one or zero, the result being added to an accumulated error function. The sum is weighted, the result becoming the updated accumulated error function for the next iteration on the occurrence of the subsequently recovered digital number. The weighted sum is also compared against a predetermined value and a control signal is generated on the weighted sum exceeding the predetermined value. The control signal is used to attempt to overcome at least one cause of the signal degradation.

    Abstract translation: 具有用于检测恢复信号中的劣化的数字电路的视盘回放系统。 包括电路以确定从盘记录恢复的信号的数字分量中的可能错误。 通过存储从盘中恢复的有效数字号码并根据预先记录在盘上的数字的正常进展将该数字递增一个常数来生成数字参考号码。 将恢复的数字与产生的参考数字进行比较,以产生不匹配的误差信号。 误差信号用于将常数二进制数加权一或零,将结果加到累积误差函数上。 总和被加权,结果成为随后恢复的数字号码出现的下一次迭代的更新的累积误差函数。 加权和也与预定值进行比较,并且在超过预定值的加权和上生成控制信号。 控制信号用于尝试克服信号劣化的至少一个原因。

    Memory type tuning system with provisions for skipping nonpreferred
tuning positions
    34.
    发明授权
    Memory type tuning system with provisions for skipping nonpreferred tuning positions 失效
    内存类型调整系统,用于跳过非优先调谐位置

    公开(公告)号:US4158816A

    公开(公告)日:1979-06-19

    申请号:US863918

    申请日:1977-12-23

    Inventor: Charles M. Wine

    CPC classification number: H03J5/029 H03J5/0263

    Abstract: A tuning system of a television receiver includes a memory with a plurality of memory locations for storing tuning information associated with various channels a viewer may select. Each memory location includes a display portion for storing a binary word representing, in BCD format, information for displaying the channel number of an associated channel and a tuning voltage portion for storing a binary word representing information for generating the appropriate tuning voltage for the associated channel. When it is desired to have a channel skipped over during the normal channel selection mode of operation of the tuning system, in response to viewer control, an input complementor complements each of the binary signals of the binary word stored in the display portion of the associated memory location to form the "1s" complement of the binary word representing the channel number of the channel and thereby identify the associated channel as a nonpreferred channel. Since the "1s" complements of the binary words representing channel numbers between 2 and 83 represent illegal channel numbers, (i.e., channel numbers not between 2 and 83), an illegal channel number decoder is used to cause memory locations containing binary signals representing illegal channel number to be skipped during the normal channel selection mode of operation of the tuning system. When it is desired to reinstate a previously skipped channel, an output complementor, in response to viewer control, recomplements each binary signal of the previously complemented binary word representing the associated channel number.

    Abstract translation: 电视接收机的调谐系统包括具有多个存储位置的存储器,用于存储与观众可选择的各种频道相关联的调谐信息。 每个存储器位置包括显示部分,用于存储以BCD格式表示用于显示相关通道的通道号的信息的二进制字和用于存储表示用于为相关通道生成适当的调谐电压的信息的二进制字的调谐电压部分 。 当期望在调谐系统的正常频道选择操作模式期间跳过频道时,响应于观众控制,输入补码器补充存储在相关联的显示部分中的二进制字的每个二进制信号 存储器位置以形成表示通道的通道号的二进制字的“1s”补码,从而将相关通道识别为非优先通道。 由于表示2到83之间的通道号的二进制字的“1s”补码表示非法通道号(即不在2和83之间的通道号),因此使用非法通道号解码器使存储位置包含表示非法的二进制信号 在调谐系统的正常频道选择模式下跳过的频道号码。 当期望恢复先前跳过的频道时,响应于观众控制,输出补码器对表示相关联的频道号的先前补充的二进制字的每个二进制信号进行重新整合。

    Phase locked loop television tuning system
    35.
    发明授权
    Phase locked loop television tuning system 失效
    锁相环电视调谐系统

    公开(公告)号:US4106059A

    公开(公告)日:1978-08-08

    申请号:US779126

    申请日:1977-03-18

    CPC classification number: H03L7/18 H03J5/0272

    Abstract: A phase locked loop tuning system for a television receiver includes a voltage controlled local oscillator for generating a local oscillator signal corresponding to the channel presently selected by a viewer, a source of a reference frequency signal, a phase detector for generating pulses at the reference frequency the duration of which is a function of the phase and frequency relationship between the reference frequency signal and the local oscillator signal, and a low pass filter for deriving a D.C. control voltage for the voltage controlled oscillator from the output signal of the phase detector. The reference frequency is related to the horizontal and vertical television scanning rates in a predetermined manner so that undesired image components generated in response to unfiltered pulse components of the control voltage occurring at the reference frequency are substantially cancelled as an image is formed.

    Abstract translation: 用于电视接收机的锁相环调谐系统包括:电压控制本地振荡器,用于产生对应于观众目前选择的频道的本地振荡器信号,参考频率信号源,用于产生参考频率脉冲的相位检测器 其持续时间是参考频率信号和本地振荡器信号之间的相位和频率关系的函数,以及用于从相位检测器的输出信号导出压控振荡器的DC控制电压的低通滤波器。 参考频率以预定方式与水平和垂直电视扫描速率相关,使得响应于在参考频率处出现的控制电压的未滤波的脉冲分量产生的不期望的图像分量基本上被消除,因为形成图像。

    Automatically activated commercial message timer
    36.
    发明授权
    Automatically activated commercial message timer 失效
    自动激活商业消息定时器

    公开(公告)号:US4979047A

    公开(公告)日:1990-12-18

    申请号:US312517

    申请日:1989-02-21

    Inventor: Charles M. Wine

    CPC classification number: H04N5/782 H04B1/202 H04N5/44 Y10S358/908

    Abstract: A commercial message timer stores data indicative of a first tuned station in response to a channel change command and begins repeatedly timing a predetermined time period. Upon each expiration of the time period, the user is reminded that the commercial message on the first tuned station may be over. In this way a user can avoid a commercial message on a first channel by setting the timer and scanning through other channels, and yet be reminded to return (e.g. by use of a PC (previous-channel) key) to the first channel at the end of a time period substantially equal to that of a typical commercial message. In another embodiment employing a videocassette recorder (VCR) the commercial timer is activated upon pressing the PAUSE key of the VCR so that the user may avoid recording the commercial message on videotape.

    Abstract translation: 商业消息定时器(110,112,114)响应于频道改变命令存储指示第一调谐台的数据,并开始重复定时预定的时间段。 在该时间段的每个到期后,提醒用户第一调谐台上的商业消息可能结束。 以这种方式,用户可以通过设置定时器和扫描其他信道来避免第一信道上的商业消息,并且仍然被提醒返回(例如,通过使用PC(前一个信道)密钥(208))到第一信道 通道在与典型商业消息的时间段基本相等的时间段结束时。 在采用录像机录像机(VCR)的另一个实施例中,按压VCR的暂停键(207)以激活商业计时器,使得用户可以避免在录像带上记录商业消息。

    Automatic digital fine tuning system
    37.
    发明授权
    Automatic digital fine tuning system 失效
    自动数字微调系统

    公开(公告)号:US4601060A

    公开(公告)日:1986-07-15

    申请号:US664418

    申请日:1984-10-24

    Inventor: Charles M. Wine

    CPC classification number: H03J7/06

    Abstract: In automatic fine tuning (AFT) apparatus in a superheterodyne receiver, the IF carrier is selectively filtered and is applied to a signal multiplier arrangement. An auxiliary heterodyning signal is also applied to the multiplier arrangement, so as to produce an offset signal having a frequency proportional to the frequency difference between the IF carrier and the heterodyning signal. The offset signal is applied to a microprocessor programmed to produce a control signal for controlling the local oscillator to reduce frequency deviation between the IF signal and a nominal IF frequency.

    Abstract translation: 在超外差接收机中的自动微调(AFT)装置中,IF载波被选择性地滤波并被应用于信号乘法器装置。 辅助外差信号也被施加到乘法器装置,以便产生具有与IF载波和外差信号之间的频率差成比例的频率的偏移信号。 偏移信号被施加到被编程为产生用于控制本地振荡器以控制IF信号和标称IF频率之间的频率偏差的控制信号的微处理器。

    Digital-to-analog converter useful in a television receiver
    38.
    发明授权
    Digital-to-analog converter useful in a television receiver 失效
    用于电视接收机的数模转换器

    公开(公告)号:US4595910A

    公开(公告)日:1986-06-17

    申请号:US518146

    申请日:1983-07-28

    Inventor: Charles M. Wine

    CPC classification number: H03M1/82

    Abstract: A digital-to-analog converter suitable for use in a television tuning system for converting bits of a digital word to a corresponding tuning voltage includes a first digital-to-duty factor converter responsive to a group of the most significant bits of the digital word for generating a first incrementally variable duty factor pulse signal and a second digital-to-duty factor converter responsive to a group of the next most significant bits of the digital word for generating a second incrementally variable duty factor pulse signal. The amplitude of the first and second pulse signals are differentially weighted, e.g., by standard tolerance resistors (.+-.10%), such that the maximum average DC potential of the second signal is greater than a single increment of the average DC potential of the first signal. The weighted signals are combined and filtered by a lowpass filter which derives the tuning voltage. This deliberately results in non-monotonicity but without a significant reduction in resolution.

    Abstract translation: 适用于用于将数字字的位转换为对应的调谐电压的电视调谐系统的数模转换器包括响应数字字的最高有效位组的第一数字到占空因数转换器 用于产生第一增量可变占空比脉冲信号和第二数字到占空因数转换器,响应于数字字的下一个最高有效位的一组,用于产生第二递增可变占空因数脉冲信号。 第一和第二脉冲信号的振幅例如通过标准公差电阻(+/- 10%)进行差分加权,使得第二信号的最大平均DC电位大于平均DC电位的单次增量 第一个信号。 加权信号由一个导出调谐电压的低通滤波器组合和滤波。 故意导致非单调性,但没有明显降低分辨率。

    Analog signal comparator using digital circuitry
    39.
    发明授权
    Analog signal comparator using digital circuitry 失效
    模拟信号比较器采用数字电路

    公开(公告)号:US4503465A

    公开(公告)日:1985-03-05

    申请号:US444165

    申请日:1982-11-24

    Inventor: Charles M. Wine

    CPC classification number: H03K7/08 H03K5/24

    Abstract: A microprocessor or other digital logic circuit recurrently tests the logical switching state of an input port. Based upon the outcome of such testing, the logical switching state at an output port is switched to the state opposite that of the input port. The recurrent testing develops at the output port a rectangular wave voltage that switches between upper and lower voltage levels. A filter coupled between the two ports develops at the input port a voltage representative of the average value of the output port voltage. The recurrent testing of the logical switching state of the input port produces a negative feedback of the output port voltage to the input port. The negative feedback develops a pulse-width modulated voltage at the output port that has an average value that is a multiple of the logic threshold voltage level of the digital logic circuit. To enable the digital logic circuit to perform a comparison of an analog voltage with a DC reference voltage, a second, comparison input port is coupled to the output port and is biased by the output port voltage at the logic threshold voltage level. The analog voltage and the DC reference voltage are then applied to the comparison input port. When the analog voltage exceeds the reference voltage, the voltage at the comparison port exceeds the logic threshold voltage level, resulting in the port being in a first logical switching state, and when the analog voltage is below the reference voltage, the voltage at the comparison port is below the logic threshold voltage level resulting in the input port being in the other logical switching state.

    Abstract translation: 微处理器或其他数字逻辑电路经常性地测试输入端口的逻辑切换状态。 基于这种测试的结果,输出端口处的逻辑切换状态被切换到与输入端口相反的状态。 在输出端口进行反复测试,可以在上下电压电平之间切换矩形波电压。 耦合在两个端口之间的滤波器在输入端口处形成表示输出端口电压的平均值的电压。 对输入端口的逻辑开关状态的反复测试产生输出端口电压对输入端口的负反馈。 负反馈在输出端口产生脉冲宽度调制电压,其平均值是数字逻辑电路的逻辑阈值电压电平的倍数。 为了使数字逻辑电路能够执行模拟电压与直流参考电压的比较,第二比较输入端口耦合到输出端口并被输出端口电压偏置在逻辑阈值电压电平。 然后将模拟电压和直流参考电压施加到比较输入端口。 当模拟电压超过参考电压时,比较端口的电压超过逻辑阈值电压电平,导致端口处于第一逻辑开关状态,当模拟电压低于参考电压时,比较电压 端口低于逻辑门限电压电平,导致输入端口处于另一逻辑切换状态。

    Servo system for a videodisc player carriage assembly
    40.
    发明授权
    Servo system for a videodisc player carriage assembly 失效
    视频播放器支架组件的伺服系统

    公开(公告)号:US4406002A

    公开(公告)日:1983-09-20

    申请号:US304349

    申请日:1981-09-22

    Inventor: Charles M. Wine

    CPC classification number: G11B21/04

    Abstract: A servo system for a VideoDisc player stylus carrying carriage assembly is described which precludes the servo system entering a hunt mode due to the signal pickup stylus tracking an eccentric signal track. The player comprises a carriage for housing a track following signal pickup stylus compliantly mounted therein. A position detector generates an analog signal proportional to the stylus position relative to a relaxed or centered position. The position signal is converted to a bilevel signal (i.e. relatively positive and relatively negative levels), the two levels corresponding to the stylus being to the right or left of the centered position respectively. The bilevel signal is sampled at regular intervals, e.g. eight, per disc revolution. Counter circuitry counts the number of samples per disc revolution which are at the relatively positive level. The resulting number is examined to determine whether it is greater or lesser than one half the total number of samples per revolution and forward or backward control signals are generated respectively. The control signals are applied to a stepper motor coupled to the carriage for translating the carriage and thereby the stylus radially across the disc.

    Abstract translation: 描述了用于VideoDisc播放器触控笔托架组件的伺服系统,其排除由于信号拾取笔跟踪偏心信号轨道而使伺服系统进入寻线模式。 播放器包括用于容纳顺应地安装在其中的轨道跟随信号拾取笔的托架。 位置检测器产生与触针位置相对于松弛或居中位置成比例的模拟信号。 位置信号被转换为双电平信号(即相对正的和相对负的电平),对应于触笔的两个电平分别在中心位置的右侧或左侧。 以规则的间隔采样双电平信号,例如。 八,每盘革命。 计数器电路计数每个盘旋转的样品数量处于相对正的水平。 检查所得数字以确定其是否大于或小于每转的总样本数量的一半,并且分别产生正向或反向控制信号。 控制信号被施加到耦合到滑架的步进马达,用于平移托架,从而使测针径向地跨越盘。

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