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:
May. 15, 2001
Filed:
May. 28, 1999
Menping Chang, Cupertino, CA (US);
Hai T. Nguyen, San Jose, CA (US);
Kendin Communications, Inc., Sunnyvale, CA (US);
Abstract
An apparatus for tracking a peak level of an input signal includes a comparator for comparing the peak level of the input signal with a reference peak voltage signal. A sample and block circuit is coupled to the output of the comparator and is capable of sampling a portion of the input signal. The sampled portion of the input signal is defined by a smart window (timing window) which is received by the sample and block circuit. The sample and block circuit controls a charge pump that determines the level of the reference peak voltage signal. A method of generating a reference peak voltage signal includes receiving an input data, generating a timing window based upon the input data to define a sampling portion in the input data, comparing a level of the reference peak voltage signal with a level of the sampling portion in the input data, and determining a level of the reference peak voltage signal based upon the comparing step.