The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1992
Filed:
Dec. 29, 1989
Applicant:
Inventors:
Michael Gutman, Newton, MA (US);
Michael G Hluchyj, Wellesley, MA (US);
James A Pasco-Anderson, Needham, MA (US);
Assignee:
Codex Corporation, Mansfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 42 ; 371 371 ;
Abstract
Information encoded by data compression (or another data encoding technique, e.g., encryption, requiring synchronization between the encoder and decoder) is transmitted over an unreliable network by checking for transmission errors after decoding. If an error is detected, the encoder is reset, using a reset protocol which may operate over an unreliable reverse channel by using a timer to generate further reset requests when the receiver does not acknowledge them in a timely fashion.