公开(公告)号：US5224123A

公开(公告)日：1993-06-29

申请号：US921431

申请日：1992-07-31

Applicant: Hiroyuki Iga ,  Masaki Nishikawa

Inventor： Hiroyuki Iga ,  Masaki Nishikawa

IPC: H03H17/06 ,  H04L25/03 ,  H04N5/21

CPC classification number: H04N5/211 ,  H03H17/06 ,  H04L25/03057 ,  H03H2017/0692 ,  H04L2025/03662

Abstract: A transversal equalizer having first and second transversal filters, each including a plurality of adders and a set of multipliers, and each of which equalizes input sample values based on tap coefficients applied to the multipliers and outputs the resulting signal, a combining circuit in the second transversal filter for combining the output signal of the first transversal filter with the signal being processed in the second transversal filter and a switch which connects the first output signal from the first transversal filter to either the combining circuit of the second transversal filter or to the input of the second transversal filter.

Abstract translation: 一种具有第一和第二横向滤波器的横向均衡器，每个滤波器包括多个加法器和一组乘法器，并且每个乘法器基于施加到乘法器的抽头系数来均衡输入采样值，并输出结果信号，第二 横向滤波器，用于将第一横向滤波器的输出信号与在第二横向滤波器中处理的信号组合;以及开关，其将来自第一横向滤波器的第一输出信号连接到第二横向滤波器的组合电路或输入 的第二横向过滤器。

公开(公告)号：US5194832A

公开(公告)日：1993-03-16

申请号：US745712

申请日：1991-08-16

Applicant: Hiroyuki Iga

Inventor： Hiroyuki Iga

IPC: H03H15/00 ,  H03H17/00 ,  H03H17/06 ,  H03H21/00 ,  H04B3/06 ,  H04L25/03 ,  H04N5/21

CPC classification number: H04L25/03057 ,  H03H17/06 ,  H04N5/211 ,  H03H2017/0692 ,  H04L2025/03662

Abstract: A transversal equalizer having a specified number of rear taps. The transversal equalizer includes a first transversal equalizer unit which receives input signals through a first input terminal, equalizes their waveforms, and outputs the equalized signals as cascaded signals and a second transversal equalizer unit which receives the cascade output signals and also receives input signals and outputs an equalized signal derived from the input signals.

公开(公告)号：US5448300A

公开(公告)日：1995-09-05

申请号：US77753

申请日：1993-06-16

Applicant: Masahiro Yamada ,  Hiroyuki Iga ,  Kiyoshi Hoshino ,  Naoki Akamatsu ,  Kenichi Tokoro ,  Hisao Shimazaki

Inventor： Masahiro Yamada ,  Hiroyuki Iga ,  Kiyoshi Hoshino ,  Naoki Akamatsu ,  Kenichi Tokoro ,  Hisao Shimazaki

IPC: H04N5/21 ,  H04N5/44 ,  H04N5/46 ,  H04N7/24 ,  H04N5/14 ,  H04N7/12

CPC classification number: H04N5/46 ,  H04N21/42607 ,  H04N21/42638 ,  H04N21/4435 ,  H04N5/211 ,  H04N5/4401 ,  H04N7/24

Abstract: An image signal processor for processing a received image signal. The received image signal can be at least one of an analog image signal and a digital image signal. The processor converts the analog image signal into first digital image data and converts the digital image signal to second digital image data. The processor selects at least one of the first and second digital image data as input image data. The input image data is then decode-processed based upon a selected at least one of a plurality of processing programs. The selected at least one processing program corresponds to the selected at least one of the first and second digital image data.

Abstract translation: 一种用于处理接收到的图像信号的图像信号处理器。 所接收的图像信号可以是模拟图像信号和数字图像信号中的至少一个。 处理器将模拟图像信号转换为第一数字图像数据，并将数字图像信号转换为第二数字图像数据。 处理器选择第一和第二数字图像数据中的至少一个作为输入图像数据。 然后基于所选择的多个处理程序中的至少一个来对输入图像数据进行解码处理。 所选择的至少一个处理程序对应于所选择的第一和第二数字图像数据中的至少一个。

公开(公告)号：US5130799A

公开(公告)日：1992-07-14

申请号：US589506

申请日：1990-09-28

Applicant: Hiroyuki Iga ,  Hiroshi Matsue

Inventor： Hiroyuki Iga ,  Hiroshi Matsue

IPC: H04N5/21

CPC classification number: H04N5/211

Abstract: A ghost cancelling system which detects a horizontal scanning line containing the reference signals and extracts 8 fields reference signals from the horizontal scanning line. A final reference signal corresponding to the 8 fields reference signals is calculated by a specified calculation algorithm, and the system corrects the tap coefficient in response to the distinguished ghost signal using the final reference signal.

公开(公告)号：US5475442A

公开(公告)日：1995-12-12

申请号：US116990

申请日：1993-09-07

Applicant: Akira Matsushita ,  Hiroyuki Iga ,  Masahiro Yamada ,  Kiyoshi Hoshino

Inventor： Akira Matsushita ,  Hiroyuki Iga ,  Masahiro Yamada ,  Kiyoshi Hoshino

IPC: H04N5/44 ,  H04N5/46 ,  H04N7/01 ,  H04N7/015 ,  H04N9/64

CPC classification number: H04N7/0122 ,  H04N5/46 ,  H04N7/0125 ,  H04N7/0152 ,  H04N9/642

Abstract: A television signal processor selectively processing each television signal transmitted by a plurality of different television systems and displaying the processed television signal using any of multiple displays having different synchronizing frequencies and aspect ratios. The television signal processor includes a signal processing device for decoding a received signal in accordance with the system generating the received television signal, and a control mechanism for processing a television signal from the signal processing device in accordance with specification data corresponding to a display for displaying the television signal.

Abstract translation: 电视信号处理器选择性地处理由多个不同电视系统发送的每个电视信号，并且使用具有不同同步频率和高宽比的多个显示器中的任一个显示处理的电视信号。 电视信号处理器包括：信号处理装置，用于根据产生接收到的电视信号的系统对接收信号进行解码;以及控制机构，用于根据与用于显示的显示相对应的规格数据处理来自信号处理装置的电视信号 电视信号。

公开(公告)号：US5065241A

公开(公告)日：1991-11-12

申请号：US552557

申请日：1990-07-16

Applicant: Hiroyuki Iga

Inventor： Hiroyuki Iga

IPC: H03H21/00 ,  H04N5/21

CPC classification number: H03H21/0012 ,  H04N5/211

Abstract: A ghost cancelling system which distinguishes whether ghosts have been substantially cancelled from a video signal for finding an equilibrium condition. The system calculates a specified value which depends on the noise signal contained in the video signal. The tap coefficients which are equal or greater than the specified value are then detected, and the system corrects only those tap coefficients after the equilibrium condition exists.