公开(公告)号：US5675617A

公开(公告)日：1997-10-07

申请号：US317669

申请日：1994-10-05

申请人： Patrick J. Quirk ,  John C. Richards

发明人： Patrick J. Quirk ,  John C. Richards

IPC分类号： H04L29/06 ,  H04L7/00

CPC分类号： H04L29/06 ,  H04L65/607 ,  H04L29/06027

摘要： A method to encode and to decode frames of data used in synchronous protocols, including HDLC and SDLC. The invention operates on blocks of data, such as data bytes or data words, in a parallel rather than a bit serial manner. The invention compares an aligned block of data with reference bit sequences for flag or abort signal detection, for zero detection, for zero deletion, for detection of consecutive one bits, and for zero insertion following a stream of consecutive one bits, for encoding and decoding according to various protocols. The invention also maintains proper data alignment following such zero insertions or deletions, and provides encoding and decoding under both data overrun and data underrun conditions.

摘要翻译： 一种编码和解码同步协议中使用的数据帧的方法，包括HDLC和SDLC。 本发明以并行而不是位串行的方式对诸如数据字节或数据字的数据块进行操作。 本发明将对准的数据块与用于标记或中止信号检测的参考比特序列进行比较，用于零检测，零删除，用于检测连续的一个比特，并且在连续的一比特流之后进行零插入，用于编码和解码 根据各种协议。 本发明还在这样的零插入或删除之后保持适当的数据对准，并且在数据超载和数据欠载条件下提供编码和解码。

公开(公告)号：US5090194A

公开(公告)日：1992-02-25

申请号：US522011

申请日：1990-05-11

申请人： John C. Richards ,  Joseph P. Smith, Jr.

发明人： John C. Richards ,  Joseph P. Smith, Jr.

IPC分类号： F01D11/10 ,  F01D17/26 ,  F02C7/00 ,  F02C9/00 ,  F02C9/18 ,  F15B13/07

CPC分类号： F01D17/26 ,  F02C9/00 ,  F15B13/07 ,  Y10T137/86533 ,  Y10T137/86654

摘要： The invention concerns a system for distributing fluid pressure to several fluidic motors from a common location. At the common location, a source pipe, which acts as the source of fluid pressure, travels past, and couples with, each pipe in a group of receiver pipes in sequence. Pressure in the source pipe is controlled so that the pressure is proper for each receiver pipe with which the source pipe couples. The receiver pipes connect with fluidic motors. Accordingly, a single control apparatus, located near the source pipe, is used and the pressure and flow from the source pipe is time-multiplexed and transmitted to the fluidic motors.

公开(公告)号：US4986305A

公开(公告)日：1991-01-22

申请号：US156688

申请日：1988-02-17

申请人： John C. Richards ,  Joseph P. Smith, Jr.

发明人： John C. Richards ,  Joseph P. Smith, Jr.

IPC分类号： F01D11/10 ,  F01D17/26 ,  F02C7/00 ,  F02C9/00 ,  F02C9/18 ,  F15B13/07

CPC分类号： F01D17/26 ,  F02C9/00 ,  F15B13/07 ,  Y10T137/86533 ,  Y10T137/86654

摘要： The invention concerns a system for distributing fluid pressure to several fluidic motors from a common location. At the common location, a source pipe, which acts as the source of fluid pressure, travels past, and couples with, each pipe in a group of receiver pipes in sequence. Pressure in the source pipe is controlled so that the pressure is proper for each receiver pipe with which the source pipe couples. The receiver pipes connect with fluidic motors. Accordingly, a single control apparatus, located near the source pipe, is used and the pressure and flow from the source pipe is time-multiplexed and transmitted to the fluidic motors.

公开(公告)号：US4853954A

公开(公告)日：1989-08-01

申请号：US8713

申请日：1987-01-28

申请人： John C. Richards

发明人： John C. Richards

IPC分类号： H04L29/06 ,  H04M11/06

CPC分类号： H04L29/06 ,  H04M11/06

摘要： The modem of this invention is capable of direct connection to a communication Host associated with a mainframe computer which uses a bisynchronous (bisync) protocol so that the Host believes a valid terminal is continuously connected regardless of whether the modem is online or offline. This permits communications to be established with the mainframe over the public switched telephone network.

摘要翻译： 本发明的调制解调器能够直接连接到与使用双向（双向）协议的主机相关联的通信主机，使得主机认为有效终端是连续连接的，而不管调制解调器是在线还是脱机。 这允许通过公共交换电话网络与主机建立通信。