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.

Date of Patent:
Sep. 17, 1996

Filed:

May. 10, 1995
Applicant:
Inventor:

Takeshi Kuwajima, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ;
U.S. Cl.
CPC ...
370 851 ; 370 951 ; 370 857 ; 34082506 ;
Abstract

A method of controlling communications in response to a communication frame in a simultaneous broadcasting mode transmitted from a third communication control apparatus (CCA). The method includes a step of transmitting from a first CCA to a second CCA a communication frame for releasing the exclusive communication mode. The method also includes a step of receiving at the second CCA the communication frame in the simultaneous broadcasting mode after the second CCA has received the communication frame for releasing the exclusive communication mode. The method further includes a step of starting to transmit a communication frame of a communication message from the first CCA to the second CCA after the first CCA has detected the ending of the communication frame in the simultaneous broadcasting mode. The method lastly includes a step of receiving at the second CCA the communication frame of the communication message transmitted from the first CCA in the exclusive communication mode.


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