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. 20, 1993
Filed:
Mar. 06, 1992
Hung-Hsiang J Chao, Lincroft, NJ (US);
Cesar A Johnston, Berkeley Heights, NJ (US);
Bell Communications Research, Inc., Livingston, NJ (US);
Abstract
To recover the service clock of a variable bit rate source (170) which generates data at a rate which is not proportional to a service clock (76), timing cells are generated. The timing cells are generated at a rate which is proportional to the service clock (76). The timing cells and data are transmitted via a network (100). At the receive-end, the data is stored in a buffer (82). A phase locked loop (90') generates a local clock signal in the form of a read signal which controls the rate at which the received data is read out of the buffer (82). The read signal produced by the phase locked loop (90') is proportional to the average rate at which timing cells are received at the receive-end. In this manner the signal which reads the data out of the buffer (82) at the receive-end approaches the service clock (76) at the source end.