公开(公告)号：EP0218401A3

公开(公告)日：1989-11-15

申请号：EP86307228.6

申请日：1986-09-19

申请人： SEIKO INSTRUMENTS INC.

发明人： Tanaka, Fumihiro ,  Matsushima, Kenichi ,  Shimada, Yoshio ,  Yamaguchi, Kaneo ,  Watanabe, Shinya

IPC分类号： G06K15/00 ,  G06F3/12

CPC分类号： G06K15/00 ,  G06K2215/0091

摘要： An interface circuit for a video signal hard copy apparatus comprises a delay circuit (7) for setting arbitrarily a delay of a sync signal, a sampling clock generation circuit (8) for producing a sampling clock signal having a predetermined phase relation with a video sync signal through the delay circuit (7) and a data sampling circuit (3) for sampling an image signal by the sampling clock signal. An image data memory (4) stores the output of the sampling circuit and a control circuit (9) receives the data of the memory circuit (4) and sets the delay of the delay circuit (7). The arrangement is such that, in operation, data samples are compared in order to set the delay.

公开(公告)号：EP0217607A3

公开(公告)日：1988-09-21

申请号：EP86307227

申请日：1986-09-19

申请人： SEIKO INSTRUMENTS INC.

发明人： Tanaka, Fumihiro ,  Matsushima, Kenichi ,  Shimada, Yoshio ,  Yamaguchi, Kaneo ,  Watanabe, Shinya

IPC分类号： H04N01/40

CPC分类号： H04N1/403

摘要： A threshold value setting circuit of a video signal interface comprises a voltage comparator (2,64) which receives a luminance signal (1,66) and converts the luminance signal into a logic signal (68). A discrimination circuit (4) discriminates the output of the voltage comparator (2,64). A digital-analog conversion circuit (3) sets the threshold value of the voltage comparator (2,64) to an arbitrary value. In operation the output of the voltage comparator (2,64) for the set threshold value is discriminated, the setting of the reference voltage is sequentially changed in accordance with the result of discrimination, and a threshold value which is in agreement with a peak voltage of the luminance signal (66) is determined in order to measure the signal voltage of the luminance signal.

摘要翻译： 视频信号接口的阈值设置电路包括接收亮度信号（1,66）的电压比较器（2,64），并将亮度信号转换成逻辑信号（68）。 鉴别电路（4）鉴别电压比较器的输出（2,64）。 数模转换电路（3）将电压比较器（264）的阈值设定为任意值。 在操作中，识别用于设定阈值的电压比较器（2,64）的输出，根据鉴别结果依次改变参考电压的设置，并且与峰值电压一致的阈值 确定亮度信号（66）以便测量亮度信号的信号电压。

公开(公告)号：EP0218401A2

公开(公告)日：1987-04-15

申请号：EP86307228.6

申请日：1986-09-19

申请人： SEIKO INSTRUMENTS INC.

发明人： Tanaka, Fumihiro ,  Matsushima, Kenichi ,  Shimada, Yoshio ,  Yamaguchi, Kaneo ,  Watanabe, Shinya

IPC分类号： G06K15/00 ,  G06F3/12

CPC分类号： G06K15/00 ,  G06K2215/0091

摘要： An interface circuit for a video signal hard copy apparatus comprises a delay circuit (7) for setting arbitrarily a delay of a sync signal, a sampling clock generation circuit (8) for producing a sampling clock signal having a predetermined phase relation with a video sync signal through the delay circuit (7) and a data sampling circuit (3) for sampling an image signal by the sampling clock signal. An image data memory (4) stores the output of the sampling circuit and a control circuit (9) receives the data of the memory circuit (4) and sets the delay of the delay circuit (7). The arrangement is such that, in operation, data samples are compared in order to set the delay.

公开(公告)号：EP0217607A2

公开(公告)日：1987-04-08

申请号：EP86307227.8

申请日：1986-09-19

申请人： SEIKO INSTRUMENTS INC.

发明人： Tanaka, Fumihiro ,  Matsushima, Kenichi ,  Shimada, Yoshio ,  Yamaguchi, Kaneo ,  Watanabe, Shinya

IPC分类号： H04N1/40

CPC分类号： H04N1/403

摘要： A threshold value setting circuit of a video signal interface comprises a voltage comparator (2,64) which receives a luminance signal (1,66) and converts the luminance signal into a logic signal (68). A discrimination circuit (4) discriminates the output of the voltage comparator (2,64). A digital-analog conversion circuit (3) sets the threshold value of the voltage comparator (2,64) to an arbitrary value. In operation the output of the voltage comparator (2,64) for the set threshold value is discriminated, the setting of the reference voltage is sequentially changed in accordance with the result of discrimination, and a threshold value which is in agreement with a peak voltage of the luminance signal (66) is determined in order to measure the signal voltage of the luminance signal.

摘要翻译： 一个视频信号接口的阈值设定电路包括一个电压比较器（2.64），其接收亮度信号（1.66）和亮度信号转换成逻辑信号（68）。 甲鉴别电路（4）判别电压比较器（2.64）的输出。 一种数字 - 模拟转换电路（3）设定电压比较器（2.64）在任意值的阈值。 在电压比较器（2.64），用于设定阈值的操作输出判别，基准电压的设置改变依次雅舞的判别结果，和一个阈值的所有这是在协议与峰值电压 亮度信号的（66）是确定性的开采，以便测量的亮度信号的信号电压。