公开(公告)号：US06269220B1

公开(公告)日：2001-07-31

申请号：US08866570

申请日：1997-06-02

申请人： Jong-Sik Jeong ,  Jae-Seong Shim ,  Chan-Dong Cho ,  Byung-Jun Kim

发明人： Jong-Sik Jeong ,  Jae-Seong Shim ,  Chan-Dong Cho ,  Byung-Jun Kim

IPC分类号： H04N726

CPC分类号： G11B20/10527 ,  G11B20/18 ,  G11B20/1813 ,  G11B2020/1062 ,  H04N19/423 ,  H04N19/61

摘要： Disclosed is an inexpensive and miniaturized digital video disc playback device having a system decoder capable of error correcting and data buffering by means of a single memory without employing separate error correcting and data buffering memories. The inventive system decoder for demodulating, error correcting, deinterleaving and descrambling of data reproduced from a disc in the digital video disc playback device, includes a memory and a memory controller for generating memory control signals for accessing the memory to record and read data when demodulating, error correcting and descrambling the reproduced data.

摘要翻译： 公开了一种便宜且小型化的数字视频光盘播放装置，其具有能够通过单个存储器进行纠错和数据缓冲的系统解码器，而不采用单独的纠错和数据缓冲存储器。 本发明的系统解码器用于从数字视频盘播放设备中的盘再现的数据的解调，纠错，解交织和解扰，包括存储器和存储器控制器，用于产生用于访问存储器的存储器控​​制信号，以在解调时记录和读取数据 ，对再现的数据进行纠错和解扰。

公开(公告)号：US06233394B1

公开(公告)日：2001-05-15

申请号：US08841633

申请日：1997-04-30

申请人： Jong-Sik Jeong ,  Jae-Seong Shim ,  Chan-Dong Cho ,  Byung-Jun Kim

发明人： Jong-Sik Jeong ,  Jae-Seong Shim ,  Chan-Dong Cho ,  Byung-Jun Kim

IPC分类号： H04N5781

CPC分类号： G11B27/105 ,  G11B19/12 ,  G11B20/10 ,  G11B20/18 ,  G11B2220/213 ,  G11B2220/2545 ,  G11B2220/2562 ,  H04N5/85 ,  H04N9/7921 ,  H04N9/8042

摘要： A method for playing back multiple kinds of optical discs includes making a decision as to whether a played back optical disc is classified into a digital video disc (DVD) or compact disc (CD) class, detecting the synchronization pattern of the identified disc class, reading a data stream from the optical disc by controlling the voltage controlled oscillation and the constant linear speed of the disc according to the identified disc class, decoding the data stream into the identified disc class according to the detected synchronization pattern, and transferring the decoded data stream to an audio/video decoder or a ROM decoder.

摘要翻译： 一种用于回放多种光盘的方法包括：将回放光盘分类为数字视频盘（DVD）或光盘（CD）类别，检测所识别的盘类别的同步模式， 通过根据所识别的盘类别控制盘的电压控制振荡和恒定的线速度，从光盘读取数据流，根据检测到的同步模式将数据流解码为识别的盘类，并且传送解码的数据 流到音频/视频解码器或ROM解码器。

公开(公告)号：US06282367B1

公开(公告)日：2001-08-28

申请号：US09007654

申请日：1998-01-15

申请人： Chan-Dong Cho ,  Jae-Seong Shim ,  Jong-Sik Jeong ,  Byung-Jun Kim

发明人： Chan-Dong Cho ,  Jae-Seong Shim ,  Jong-Sik Jeong ,  Byung-Jun Kim

IPC分类号： H04N5781

CPC分类号： G11B20/18 ,  G11B20/10527 ,  H04N5/85 ,  H04N9/8042

摘要： A system decoder for high-speed data transmission in an optical disc reproducing apparatus. The system decoder includes a track buffer memory; a first FIFO (first-in, first-out) memory for receiving data descrambled and error-detected and outputting the data by a unit of plural words; a second FIFO memory for receiving data from the track buffer memory and outputting the data by the unit of plural words; and a track buffer controller writing the data in the first FIFO memory into the track buffer memory in a page mode, and reading the data written in the track buffer memory in a page mode to output the read data to the second FIFO memory. The track buffer memory includes a data area into which main data is written; an error information area into which error information for the main data is written; and a microcomputer area into which a microcomputer of the optical disc reproducing apparatus writes data.

摘要翻译： 一种用于在光盘再现装置中进行高速数据传输的系统解码器。 系统解码器包括轨道缓冲存储器; 第一FIFO（先进先出）存储器，用于接收解扰和错误检测的数据，并以多个字单位输出数据; 第二FIFO存储器，用于从轨道缓冲存储器接收数据，并以多个单位单位输出数据; 以及轨道缓冲器控制器，其以页面模式将第一FIFO存储器中的数据写入轨道缓冲存储器，并且以页面模式读取写入轨道缓冲存储器中的数据，以将读取的数据输出到第二FIFO存储器。 轨道缓冲存储器包括写入主数据的数据区域; 写入主数据的错误信息的错误信息区域; 以及光盘再现装置的微型计算机写入数据的微型计算机区域。

公开(公告)号：US6158039A

公开(公告)日：2000-12-05

申请号：US7662

申请日：1998-01-15

申请人： Chan-Dong Cho ,  Jae-Seong Shim ,  Jong-Sik Jeong ,  Byung-Jun Kim

发明人： Chan-Dong Cho ,  Jae-Seong Shim ,  Jong-Sik Jeong ,  Byung-Jun Kim

IPC分类号： G06F11/10 ,  G11B5/02 ,  G11B20/18 ,  H03M13/00 ,  G11C29/00

CPC分类号： G11B20/1813

摘要： A system decoder having error correcting memories for high-speed data transmission and a method for controlling the same. A system decoder of an optical disk reproducing apparatus having a descrambler for restoring scrambled data in the process of encoding data, includes first and second memories for correcting an error, and a memory controller for transmitting error-corrected data to the descrambler while data read and demodulated from the optical disk is written in one of the first and second memories, and error-correcting data written in the other memory while the demodulated and error-corrected data is written and read.

摘要翻译： 一种具有用于高速数据传输的纠错存储器的系统解码器及其控制方法。 具有用于在编码数据的过程中恢复加扰数据的解扰器的光盘再现装置的系统解码器包括用于校正错误的第一和第二存储器，以及存储器控制器，用于在读取数据时将纠错数据发送到解扰器， 在解调和纠错数据被写入和读取的同时，将从光盘解调的第一和第二存储器中的一个写入另一个存储器中的纠错数据。

公开(公告)号：US6072755A

公开(公告)日：2000-06-06

申请号：US882231

申请日：1997-06-25

申请人： Byung-Jun Kim ,  Jae-Seong Shim ,  Chan-Dong Cho

发明人： Byung-Jun Kim ,  Jae-Seong Shim ,  Chan-Dong Cho

IPC分类号： H04N5/85 ,  G11B20/10 ,  G11B20/18 ,  G11B27/10 ,  H04N5/907 ,  H04N5/937 ,  H04N9/804 ,  H04N9/806 ,  G11B17/22

CPC分类号： G11B20/10527 ,  H04N9/8042 ,  G11B20/18 ,  H04N5/85 ,  H04N9/8063

摘要： A device for controlling a multidomain memory of an optical disk player which performs demodulation, error correction and descrambling for information data reproduced from an optical disk, and transmits data descrambled to an audio/video decoder or ROM decoder. The device for controlling the multidomain memory includes a memory for reading or writing data modulated, error-corrected or descrambled by the disk player, the memory including a plurality of units each of which has a characteristic number; a demodulation address generator for counting a clock which latches the demodulated data; an error correction address generator for generating an address signal for reading data to be error-corrected from the memory; a descramble address generator for generating an address signal for storing the descrambled data into the memory; a record/reproduction controller for generating signals required for accessing the memory in order to record or reproduce data; a data output address generator for generating an address signal for reading data to be transmitted from the memory when a data transmission request signal is received from the audio/video decoder or the ROM decoder; and a memory state controller for judging whether a memory state is in overflow, underflow or empty by comparing the addresses generated from the address generators with a predetermined critical value, so as to command the record/reproduction controller not to record any more, or to generate a signal indicating the memory state.

摘要翻译： 一种用于控制光盘播放器的多域存储器的设备，其对从光盘再现的信息数据进行解调，纠错和解扰，并且将解扰频的数据发送到音频/视频解码器或ROM解码器。 用于控制多域存储器的装置包括用于读取或写入由盘播放器调制，纠错或解扰的数据的存储器，所述存储器包括多个单元，每个单元具有特征号; 解调地址发生器，用于对锁存解调数据的时钟进行计数; 纠错地址发生器，用于产生用于从存储器读出要纠错的数据的地址信号; 解扰地址发生器，用于产生用于将解扰数据存储到存储器中的地址信号; 用于产生访问存储器以便记录或再现数据所需的信号的记录/再现控制器; 数据输出地址发生器，用于当从音频/视频解码器或ROM解码器接收到数据发送请求信号时，生成用于读取要从存储器发送的数据的地址信号; 以及存储器状态控制器，用于通过将从地址发生器产生的地址与预定临界值进行比较来判断存储器状态是否处于溢出，下溢或空白，以便命令记录/再现控制器不再记录，或者 产生指示存储器状态的信号。

公开(公告)号：US4977923A

公开(公告)日：1990-12-18

申请号：US346879

申请日：1989-05-03

申请人： Chan-Dong Cho

发明人： Chan-Dong Cho

IPC分类号： F16K21/18 ,  F16K31/385 ,  F16K31/128 ,  F16K31/34

CPC分类号： F16K21/18 ,  F16K31/385 ,  Y10T137/7339 ,  Y10T137/7374

摘要： A pilot controlled diaphragm shut-off valve (13) includes a cushion body (22) disposed in a pilot pressure chamber (20). The cushion body (22)operates to gradually allow the build up of pressure in the pilot pressure chamber (20) as water enters through a pilot orifice (21a) into the pilot pressure chamber (20). Such gradual pressure build up in the pilot pressure chamber (20) allows a gradual closing velocity of the shut-off diaphragm valve (13) and thereby eliminates the water hammer phenomena. An actuating diaphragm (32) is provided for opening and closing a pilot valve (24). Alternatively, a float (43) may be employed for opening and closing the pilot valve (24). Either the actuating diaphragm (32) or the float (43) is linked to a stem (23) and lever (26) mechanism, or alternatively to a magnetic linkage (40, 41, 42a).

摘要翻译： 先导控制膜片截止阀（13）包括设置在先导压力室（20）中的缓冲体（22）。 随着水通过先导孔（21a）进入先导压力室（20），缓冲体（22）逐渐允许先导压力室（20）中的压力增加。 在先导压力室（20）中累积的这种逐渐的压力允许截止隔膜阀（13）的逐渐闭合速度，从而消除水锤现象。 提供用于打开和关闭先导阀（24）的致动隔膜（32）。 或者，可以使用浮子（43）来打开和关闭先导阀（24）。 致动隔膜（32）或浮子（43）都被连接到杆（23）和杆（26）机构，或者替代地连接到磁连杆（40,41,42a）。

公开(公告)号：US06859614B1

公开(公告)日：2005-02-22

申请号：US08881123

申请日：1997-06-24

申请人： Chan-Dong Cho

发明人： Chan-Dong Cho

IPC分类号： G06F12/06 ,  G06F13/362 ,  G11B20/10 ,  H04N5/765 ,  H04N5/781 ,  H04N5/85 ,  H04N5/926 ,  H04N7/52

CPC分类号： H04N21/4435 ,  H04N5/85 ,  H04N21/42646

摘要： An apparatus for controlling an access to a memory in a system decoder of a digital video disk player. The digital video disk player includes several devices which access the memory. A memory controller connected to the devices and a data/address bus controls access to the memory. A priority order controller allows the devices to access the memory according to a predetermined priority order. The priority order controller generates acknowledgement signals to the corresponding devices in response to request signals generated from the devices. If two or more request signals are simultaneously generated from the devices, the priority order controller generates an acknowledgement signal to the appropriate device according to a predetermined priority order of the devices. Further, the acknowledgement signal is deactivated, if an access actuation signal is deactivated.

摘要翻译： 一种用于控制对数字视频盘播放器的系统解码器中的存储器的访问的装置。 数字视频盘播放器包括访问存储器的若干设备。 连接到设备的存储器控​​制器和数据/地址总线控制对存储器的访问。 优先顺序控制器允许设备根据预定的优先级顺序访问存储器。 优先顺序控制器响应于从设备产生的请求信号，向对应的设备生成确认信号。 如果从设备同时产生两个或更多个请求信号，则优先级顺序控制器根据设备的预定优先级顺序向适当的设备生成确认信号。 此外，如果访问致动信号被去激活，则确认信号被去激活。