William A Robbins

US Patent:

47470984, May 24, 1988

Filed:

Nov 13, 1986

Appl. No.:

6/930178

Inventors:

Zheng F. Huang - Ft. Lauderdale FL
William M. Robbins - Hollywood FL

Assignee:

Racal Data Communications Inc. - Sunrise FL

International Classification:

H04J 300
H04J 312

US Classification:

370 99

Abstract:

A method of encoding data into a frame, includes the step of providing a frame having a plurality of byte locations for storing a plurality of bytes each associated with one of the byte locations. The value of the initial byte location of the frame is stored in a temporary register. An address of a first byte location having zero value is stored in the initial byte location of the frame. A continuation bit associated with the address of said first byte location is set. The value of the initial byte is stored in the first byte location. The non-zero valued bytes of information are stored in their associated byte locations of the frame. When the initial byte location contains zero, the last location containing an address of a zero valued byte repeats the previous address having a zero valued byte.