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:
Oct. 10, 1989
Filed:
Mar. 23, 1988
Applicant:
Inventor:
Masayoshi Son, Tokyo, JP;
Assignee:
Datanet Corp., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
379356 ; 379216 ; 379221 ;
Abstract
An automatic dialer, which generates a signal for selection of a communication line from a plurality of communication lines belonging to a plurality of common carriers before communication is made between a calling subscriber and a called subscriber. The automatic dialer automatically transmits a signal specifying one of a plurality of signal paths coupled to the called subscriber in addition to other necessary signals, thus minimizing the numbers dialed by a user and resulting in easier operation of the system. The ones of the plurality of signal paths specified by the system can be easily changed by a tone sent to the system.