公开(公告)号：WO1995032553A1

公开(公告)日：1995-11-30

申请号：PCT/US1995006096

申请日：1995-05-16

Applicant: 3COM CORPORATION

Inventor： 3COM CORPORATION ,  PATEL, Sandeep ,  JOHNSON, Howard, W. ,  RIVERS, J., R.

IPC: H03M05/16

CPC classification number: H04L25/4925 ,  H03M5/18

Abstract: An apparatus and method for transmitting an 8-bit binary format data word as a 6-trit ternary code word includes an encoder (13), a decoder (178), and a code assignment that produce, for each 8-bit data word value, a unique 6-trit ternary code word that is particularly optimized for transmission over twisted-pair cable (35, 38, 40, 43). The logic circuitry (100, 220) of the invention is optimized to accomplish the translation using a small number of combinatorial logic gates. The present invention thus has advantages in size, speed, and performance over other possible means for encoding an 8-bit data word to a 6-trit code word.

Abstract translation: 用于发送8位二进制格式数据字作为6位三进制码字的装置和方法包括：编码器（13），解码器（178）以及代码分配，对于每个8位数据字值 ，一种独特的6位三元码字，经过双绞线电缆（35,38,40,43）的传输特别优化。 本发明的逻辑电路（100,220）被优化以使用少量的组合逻辑门完成平移。 因此，本发明在尺寸，速度和性能上优于将8位数据字编码为6位代码字的其他可能手段。

公开(公告)号：WO1996007132A1

公开(公告)日：1996-03-07

申请号：PCT/US1995010508

申请日：1995-08-18

Applicant: 3COM CORPORATION

Inventor： 3COM CORPORATION ,  JOHNSON, Howard, W. ,  PATEL, Sandeep ,  RIVERS, J., R. ,  SHERER, William, P.

IPC: G06F05/06

CPC classification number: G06F13/387 ,  H04L12/44 ,  H04L25/14

Abstract: Binary data is transmitted to a network physical layer from a media access controller (10) as a series of multibit nibbles and is encoded into a multi-level data stream (178) and split among a number of transmission channels (12). The multi-level signal is then translated at a receiver back into a binary data stream. In a specific embodiment, the symbol transmission frequency on each of the transmission channels (12) is at the same frequency as the nibbles transfer rate between the media access controller (10) and the physical layer.

Abstract translation: 将二进制数据作为一系列多位半字节从媒体访问控制器（10）发送到网络物理层，并将其编码为多级数据流（178）并在多个传输通道（12）之间分配。 然后，多电平信号在接收机处被转换成二进制数据流。 在具体实施例中，每个传输信道（12）上的符号传输频率与介质访问控制器（10）和物理层之间的半字节传输速率相同。

公开(公告)号：EP0761040B1

公开(公告)日：2003-01-29

申请号：EP95919846.6

申请日：1995-05-16

Applicant: 3Com Corporation

Inventor： PATEL, Sandeep ,  JOHNSON, Howard, W. ,  RIVERS, J., R.

IPC: H03M5/16

CPC classification number: H04L25/4925 ,  H03M5/18

Abstract: An apparatus and method for transmitting an 8-bit binary format data word as a 6-trit ternary code word includes an encoder (13), a decoder (178), and a code assignment that produce, for each 8-bit data word value, a unique 6-trit ternary code word that is particularly optimized for transmission over twisted-pair cable (35, 38, 40, 43). The logic circuitry (100, 220) of the invention is optimized to accomplish the translation using a small number of combinatorial logic gates. The present invention thus has advantages in size, speed, and performance over other possible means for encoding an 8-bit data word to a 6-trit code word.

公开(公告)号：EP0777876A1

公开(公告)日：1997-06-11

申请号：EP95930201.0

申请日：1995-08-18

Applicant: 3Com Corporation

Inventor： JOHNSON, Howard, W. ,  PATEL, Sandeep ,  RIVERS, J., R. ,  SHERER, William, P.

IPC: G06F13 ,  H04L25 ,  H04L12

CPC classification number: G06F13/387 ,  H04L12/44 ,  H04L25/14

Abstract: Binary data is transmitted to a network physical layer from a media access controller (10) as a series of multibit nibbles and is encoded into a multi-level data stream (178) and split among a number of transmission channels (12). The multi-level signal is then translated at a receiver back into a binary data stream. In a specific embodiment, the symbol transmission frequency on each of the transmission channels (12) is at the same frequency as the nibbles transfer rate between the media access controller (10) and the physical layer.

公开(公告)号：EP0761040A1

公开(公告)日：1997-03-12

申请号：EP95919846.0

申请日：1995-05-16

Applicant: 3Com Corporation

Inventor： PATEL, Sandeep ,  JOHNSON, Howard, W. ,  RIVERS, J., R.

IPC: H03M5 ,  H04L25

CPC classification number: H04L25/4925 ,  H03M5/18

Abstract: An apparatus and method for transmitting an 8-bit binary format data word as a 6-trit ternary code word includes an encoder (13), a decoder (178), and a code assignment that produce, for each 8-bit data word value, a unique 6-trit ternary code word that is particularly optimized for transmission over twisted-pair cable (35, 38, 40, 43). The logic circuitry (100, 220) of the invention is optimized to accomplish the translation using a small number of combinatorial logic gates. The present invention thus has advantages in size, speed, and performance over other possible means for encoding an 8-bit data word to a 6-trit code word.