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:
Feb. 24, 1998
Filed:
Sep. 18, 1995
Applicant:
Inventor:
Kiyotaka Horikawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
455557 ;
Abstract
Each of a terminal adapter and a switching equipment ancillary device has a protocol controller for analyzing and controlling a communication protocol control signal transmitted from a data terminal, so that a modem interface can directly be set to an originate mode or an answer mode. As a mobile station has no modem function, the switching equipment ancillary device and a modem terminal are synchronized with each other by a clock signal, and transmit and receive data therebetween. A transmission delay caused by a retransmission effected under error correction control on a communication line is adjusted by flow control between the modem interface and the modem terminal.