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:
Jun. 18, 2002
Filed:
Aug. 14, 1998
Applicant:
Inventor:
Gordon Wilson, Swindon, GB;
Assignee:
Mitel Semiconductor Limited, Wiltshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 2/706 ;
U.S. Cl.
CPC ...
H04L 2/706 ;
Abstract
In a detection circuit for ASK or OOK modulation, the received modulated signal is ac coupled to a dc restoration circuit and amplified. The dc restoration is carried out on signal peaks corresponding to “mark” intervals of the modulated signal. Thus data may be recovered even in the presence of high levels inband continuous interfering signals.