公开(公告)号：US5329319A

公开(公告)日：1994-07-12

申请号：US967957

申请日：1992-10-27

申请人： Gary J. Sgrignoli

发明人： Gary J. Sgrignoli

IPC分类号： H04N5/44 ,  H04N5/50

CPC分类号： H04N5/4446 ,  H04N5/50

摘要： A television receiver includes a long loop frequency and phase locked loop (FPLL) in which the tuner voltage is controlled by the output voltage of the FPLL. A SAW bandpass filter couples the IF signal from the tuner to a synchronous demodulator and to the FPLL. An oscillator includes a SAW resonator that is formed on the same substrate as the SAW bandpass filter for supplying a reference signal to the FPLL and to the synchronous demodulator. The common substrate assures tracking between the IF SAW bandpass filter and the oscillator SAW resonator with temperature changes and processing variations.

摘要翻译： 电视接收机包括长环频率和锁相环（FPLL），其中调谐器电压由FPLL的输出电压控制。 SAW带通滤波器将来自调谐器的IF信号耦合到同步解调器和FPLL。 振荡器包括形成在与SAW带通滤波器相同的衬底上的SAW谐振器，用于向FPLL和同步解调器提供参考信号。 公共衬底确保在IF SAW带通滤波器和具有温度变化和处理变化的振荡器SAW谐振器之间的跟踪。

公开(公告)号：USD344510S

公开(公告)日：1994-02-22

申请号：US948713

申请日：1992-09-14

申请人： Richard K. Althans ,  Francis J. Greb

设计人： Richard K. Althans ,  Francis J. Greb

公开(公告)号：US5276604A

公开(公告)日：1994-01-04

申请号：US19518

申请日：1993-02-19

申请人： Bruce E. Messman

发明人： Bruce E. Messman

IPC分类号： H02M3/335 ,  H04N3/185

CPC分类号： H02M3/33507 ,  H04N3/185

摘要： A voltage regulator for a flyback-type high voltage supply having: a pulse transformer with its secondary interconnected in series with the primary of a flyback transformer; a control circuit for sensing the generation of a flyback pulse, a reference voltage, and a feedback voltage signal appearing at the output of the flyback transformer; and a switch for selectively applying energy to the primary of the pulse transformer while uniformly maintaining the flow of current through the primary of the flyback transformer.

摘要翻译： 一种用于反激式高压电源的电压调节器，具有：脉冲变压器，其二次互感与反激式变压器的初级串联; 用于感测在回扫变压器的输出处出现的回扫脉冲，参考电压和反馈电压信号的产生的控制电路; 以及用于选择性地将能量施加到脉冲变压器的初级的开关，同时均匀地保持通过回扫变压器的初级的电流。

公开(公告)号：US5274676A

公开(公告)日：1993-12-28

申请号：US790935

申请日：1991-11-12

申请人： Paul M. Gosc ,  Manish Pradhen ,  Khosro M. Rabii

发明人： Paul M. Gosc ,  Manish Pradhen ,  Khosro M. Rabii

IPC分类号： H04L7/033 ,  H04L7/04 ,  H04L7/08 ,  H04L7/00

CPC分类号： H04L7/08 ,  H04L7/0331 ,  H04W56/0035 ,  H04L7/04

摘要： A method of operating a multi-standard noise immune sync pulse recovery system establishes a time window during which a sync pulse is expected. The count of a counter is stored when a sync pulse occurs as expected, the counter is reset and a sync output is generated. Successive sync pulses occurring as expected are verified by comparison with the stored counts. When a first predetermined number of successive sync pulses occur as expected, a state of periodicity is established for the signal. The window is progressively narrowed to optimize the system noise immunity responsive to a second predetermined number of sync pulses occurring as expected. Sync outputs are generated in the place of expected sync pulses that do not occur during the window when the system is in the state of periodicity. The state of periodicity is lost when a third predetermined number of sync pulses do not appear as expected and the window is progressively widened.

摘要翻译： 操作多标准噪声免疫同步脉冲恢复系统的方法建立了期望同步脉冲的时间窗口。 当按预期出现同步脉冲时，存储计数器的计数，计数器被复位并产生同步输出。 通过与存储的计数进行比较来验证如预期发生的连续同步脉冲。 当预期出现第一预定数量的连续同步脉冲时，对信号建立周期性状态。 窗口逐渐缩小，以响应于按预期发生的第二预定数量的同步脉冲来优化系统噪声抗扰度。 当系统处于周期状态时，产生同步输出代替在窗口期间不发生的预期同步脉冲。 当第三预定数量的同步脉冲不按预期出现并且窗口逐渐变宽时，周期性状态丢失。

公开(公告)号：US5274307A

公开(公告)日：1993-12-28

申请号：US745632

申请日：1991-08-15

申请人： Steven B. Christensen

发明人： Steven B. Christensen

IPC分类号： H04N9/28 ,  H01J29/70 ,  H01J29/76

CPC分类号： H04N9/28

摘要： A single IC chip, eight channel, correction waveform generator for CRT displays is disclosed. Each channel may output a different waveform to correct a different form of raster distortion. A correction waveform is developed for each type of display distortion. For each correction waveform eight correction waveform segments spaced over the vertical scan cycle are then selected and nine values on each waveform segment are digitally stored in the chip for each channel. The chip generates a corrective waveform segment per channel for each horizontal scan line in the display by serially horizontally interpolating values for the intervals between the selected nine values. This horizontal interpolation uses weighted sum equations applied to the closest four known waveform segment values around the interval to produce interpolated values lying on curves between the selected values. In order to obtain known waveform values for horizontal scan lines not having selected and stored waveform values corresponding thereto, linear vertical interpolation is performed to supply the known values for horizontal interpolation. Careful selection of numerical weights in the weighted sums equations, and the need for few known values to solve the interpolation equations, lead to reduced hardware requirements within the IC. Great control over CRT display correction is thus obtained with a minimal number of specified correction values.

摘要翻译： 公开了用于CRT显示器的单个IC芯片，八通道校正波形发生器。 每个通道可以输出不同的波形以校正不同形式的光栅失真。 为每种类型的显示失真开发校正波形。 对于每个校正波形，然后选择在垂直扫描周期上间隔的八个校正波形段，并且每个波形段上的九个值被数字地存储在每个通道的芯片中。 芯片通过对所选择的九个值之间的间隔进行串行水平内插来为显示器中的每个水平扫描线通道产生每个通道的校正波形段。 这种水平插值使用加权和方程应用于围绕该间隔的最近四个已知波形段值，以产生位于所选值之间的曲线上的内插值。 为了获得没有与其对应的选择和存储的波形值的水平扫描线的已知波形值，执行线性垂直内插以提供用于水平内插的已知值。 在加权和方程中仔细选择数值权重，并且需要很少的已知值来解决内插方程，导致IC内的硬件要求降低。 因此，以最小数量的指定校正值获得对CRT显示校正的极大控制。

公开(公告)号：US5274302A

公开(公告)日：1993-12-28

申请号：US779684

申请日：1991-10-21

申请人： Raymond G. Capek ,  Siegfried M. Greiner

发明人： Raymond G. Capek ,  Siegfried M. Greiner

IPC分类号： H01J29/07

CPC分类号： H01J29/073 ,  H01J2229/0716 ,  H01J2229/0722

摘要： A covering for a discontinuity in a mask support frame for a tension mask cathode ray tube comprises a stiff yet flexible (or bendable) metal strip having a first surface for facing a mask frame surface which is proximal to a phosphor screen, and attachment to the mask frame on at least one side of the discontinuity, and a second surface facing the phosphor screen. A portion of the covering may be formed to match the cross-section profile of the mask frame surface to which it is attached. The covering may be formed in a continuous rectangle to form a rectangular frame assembly capable of attachment to a faceplate.

摘要翻译： 用于张力屏蔽阴极射线管的掩模支撑框架中的不连续的覆盖物包括刚性但柔性（或可弯曲的）金属条，其具有面向靠近荧光屏的掩模框架表面的第一表面，并且附接到 在所述不连续部的至少一侧的掩模框架以及面对所述荧光屏的第二表面。 覆盖物的一部分可以形成为与其所附接的荫罩框架表面的横截面轮廓相匹配。 覆盖物可以形成为连续矩形，以形成能够附接到面板的矩形框架组件。

公开(公告)号：US5258838A

公开(公告)日：1993-11-02

申请号：US802153

申请日：1991-12-04

申请人： Richard W. Citta

发明人： Richard W. Citta

IPC分类号： H04H20/67 ,  H04N5/44 ,  H04N7/08 ,  H04N11/24 ,  H04N5/21 ,  H04N7/00

CPC分类号： H04H20/67 ,  H04N11/006 ,  H04N5/4401 ,  H04N7/0803

摘要： A precoded N-level HDTV digital video signal characterized by a sampling rate fs substantially equal to 3/2 the NTSC color subcarrier frequency is modulated for transmission on a carrier signal having a frequency substantially mid-way between the picture carrier and color subcarrier of an NTSC co-channel. The received signal is detected by a synchronous detector in response to a regenerated carrier signal and interfering NTSC beat components in the output of the detector are attenuated by a comb filter having a notch at fs/3. The output of the comb filter comprises an M-level signal, where M is greater than N, which is converted to an N-level signal corresponding to the demodulated video signal.

摘要翻译： 调制NTSC彩色副载波频率基本上等于3/2的采样率fs的预编码的N级HDTV数字视频信号，用于在具有频率基本上介于图像载波和彩色副载波之间的频率的载波信号上进行传输 NTSC同频道。 所接收的信号由同步检测器响应于再生的载波信号而检测，并且检测器的输出中的干扰NTSC拍频分量由具有fs / 3的陷波的梳状滤波器衰减。 梳状滤波器的输出包括M级信号，其中M大于N，其被转换为对应于解调视频信号的N电平信号。

公开(公告)号：US5257396A

公开(公告)日：1993-10-26

申请号：US761106

申请日：1991-09-17

申请人： Frederick H. Auld, Jr. ,  Michael E. Long ,  Larry K. Moreland

发明人： Frederick H. Auld, Jr. ,  Michael E. Long ,  Larry K. Moreland

IPC分类号： H04N7/167 ,  H04B17/00

CPC分类号： H04N7/167

摘要： A dual in-band/out-of-band CATV receiver includes a coupler that couples input signals to a tuner and decoder for demodulation and recovery of in-band data and to an FSK receiver for recovery of out-of-band data. The recovered data outputs of the decoder and of the FSK receiver are coupled to a data switch that has a common output that is coupled to a tuner/decoder microprocessor. The tuner/decoder microprocessor in turn supplies information to a switch microprocessor for controlling operation of the data switch to couple either in-band or out-of-band data to the tuner/decoder microprocessor. The data switch defaults to the in-band data position whenever a channel change occurs.

摘要翻译： 双带内/带外CATV接收机包括将输入信号耦合到调谐器和解码器的耦合器，用于解调和恢复带内数据以及FSK接收器以恢复带外数据。 解码器和FSK接收机的恢复的数据输出耦合到具有耦合到调谐器/解码器微处理器的公共输出的数据开关。 调谐器/解码器微处理器又将信息提供给开关微处理器，用于控制数据开关的操作以将带内或带外数据耦合到调谐器/解码器微处理器。 每当发生频道更改时，数据切换默认为带内数据位置。

公开(公告)号：US5249050A

公开(公告)日：1993-09-28

申请号：US779442

申请日：1991-10-18

申请人： Thomas J. Zato

发明人： Thomas J. Zato

IPC分类号： H04N7/035 ,  H04N7/088

CPC分类号： H04N7/0355 ,  H04N7/0885

摘要： A method of finding a given line in the vertical blanking interval of a television signal in which the given line is preceded by a run-in signal and for recovering data on that line. A target line is accessed by counting a number of horizontal pulses after a vertical sync pulse and a test for the run-in signal is made. If the run-in signal is not found, another line in the vicinity of the target line is accessed after a subsequent vertical sync pulse. The process is repeated until the given line is found whereupon the number of horizontal pulses counted is remembered and directly used to access said given line in subsequent vertical blanking intervals. If no run-in signal is found, accessing and testing of corresponding lines in the other field of a two interlaced field television system is performed.

摘要翻译： 在电视信号的垂直消隐间隔中找到给定行的方法，其中给定行前面有输入信号并用于恢复该行上的数据。 通过在垂直同步脉冲之后对多个水平脉冲进行计数并进行导入信号的测试来访问目标线。 如果没有找到进入信号，则在后续垂直同步脉冲之后访问目标线附近的另一条线。 重复该过程直到找到给定的行，因此计数的水平脉冲的数目被记住并直接用于在随后的垂直消隐间隔中访问所述给定行。 如果没有发现接入信号，则执行对两行隔行电视系统的另一场中相应行的访问和测试。

公开(公告)号：USD339574S

公开(公告)日：1993-09-21

申请号：US728069

申请日：1991-07-10

申请人： Richard K. Althans ,  Mark Gartz

设计人： Richard K. Althans ,  Mark Gartz