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:
Sep. 16, 1986
Filed:
Dec. 31, 1984
Wayne D Grover, Ottawa, CA;
Martin C Lefebvre, Ottawa, CA;
Northern Telecom Limited, Montreal, CA;
Abstract
Asynchronous packets for a plurality of channels, each packet comprising a channel address and two information bytes, are stored in a FIFO. The address in the packet is used with a first pointer to address a RAM for storing the bytes therein. The RAM is cyclically addressed by a channel address together with a second pointer to read the bytes out synchronously to the relevant channel. Updating of the second pointer is inhibited for each channel initially to prime the RAM with bytes for the channel, and if the pointers become equal. The bytes may comprise speech samples or data. A mapped memory may be provided for converting between channel addresses in the packets and output channel addresses.