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. 12, 1994
Filed:
Jul. 15, 1992
Yukari Kou, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In a random access communication system comprising a central station and user stations, each user station transmits a packet to the central station on a randomly selected timeslot of a time-division multiple access channel and defines a plurality of 'minislots' within the selected timeslot and transmits a burst on one of the minislots. The central station monitors the defined monislots to detect the burst transmission, and assigns as many timeslots as required if more than one burst transmission is detected within a timeslot interval. A slot assignment signal is sent from the central station to the user stations containing a negative acknowledgment of the transmitted packet. The user station from which the packet was transmitted is responsive to the negative acknowledgment to select one of the assigned timeslots and retransmit to the central station a copy of the packet on the selected assigned timeslot.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile