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:
Nov. 06, 2001
Filed:
Nov. 30, 1998
Fritz Seytter, München, DE;
Bernhard Wimmer, München, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In an automatic repeat request procedure (ARQ), a first message is transmitted from a first computer unit to a second computer unit. Upon detection of a transmission error in the first message, a back-signalling message is coded in the second computer unit and transmitted to the first computer unit. The back-signalling message has at least one request field having the length of exactly one bit. A second message is requested by means of the request field. The second message contains additional information required for the error correction of the first message, or is the repetition of a message already transmitted or lost. The second message is transmitted to the second computer unit and decoded in the second computer unit together with the first message.