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:
Jul. 08, 2003
Filed:
Sep. 13, 1999
Kazuhiko Harasaki, Tokyo, JP;
Hideyuki Hirata, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An external signal synchronized message signaling apparatus which outputs a particular message to channels of a time division output frame in accordance with a state of an external signal is disclosed. The message signaling apparatus includes a switch buffer, a selector, a message memory, a read control memory and a read controller. Addresses common to the switch buffer and the message memory are stored in the read control memory, and the read controller reads out one of the addresses from the read control memory, reads out data from the switch buffer or the message memory based on the read out address and outputs the read out data to a time division frame. Synchronization instruction information is set individually for the individual data in the read control memory or the message memory, and only when an external synchronizing signal is present when data to be signaled for an individual channel us to be read out, the address read out by the read controller is used as an address for the message memory.