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:
Apr. 15, 1997
Filed:
Oct. 28, 1994
Applicant:
Inventors:
Valter Bella, Turin, IT;
Andrea Finotello, Settimo Torinese, IT;
Danilo Galgani, Turin, IT;
Marco Gandini, Turin, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04L / ;
U.S. Cl.
CPC ...
375219 ; 375376 ; 327159 ; 331 11 ;
Abstract
A high speed digital signal transceiver in CMOS technology, in which the receiver has a clock signal extraction circuit, which is capable of self-aligning on incoming data with no spurious locks. Utilizing the PLL technique, the circuit generates a clock signal locked to the incoming signal utilizing a local oscillator, voltage-controlled by two feedback loops, a main one for frequency and phase corrections and a secondary one for phase correction. Moreover, original circuit solutions for the phase detectors and the low-pass filters are also envisaged.