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:
Oct. 13, 1992
Filed:
Jan. 08, 1990
Joseph L Whitehead, Decatur, TX (US);
Reliance Comm/Tec Corporation, Chicago, IL (US);
Abstract
A clock synchronization scheme for synchronizing a remote terminal to a distantly located central office terminal. In order to obtain synchronization, the central office terminal repetitively transmits a frame which has in it only one synchronization bit located in a predetermined position. The remote terminal includes a voltage connected oscillator whose output is used to determine when the predetermined bit position should be received from the central office terminal. The remote terminal controls the frequency of the oscillator based on the phase and frequency difference between the actual received synchronization bit and the bit position that the terminal says that bit should be received in. Once synchronization is achieved, the central office terminal transmits in each frame a three bit window which includes the synchronization bit. The remote terminal then searches each frame for the three bit window as long as synchronization is maintained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile