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. 04, 1994
Filed:
Apr. 16, 1992
Applicant:
Inventors:
Takahiko Nakano, Ikoma, JP;
Shuichi Yoshikawa, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379 99 ; 375-8 ; 375114 ;
Abstract
A modem including an identification signal detection section for detecting a specific identification signal during data transmission, a mode switching section for switching the mode from data transmit mode to control command accept mode when the identification signal is detected singly, and an identification signal deleting section for deleting one identification signal from the transmit data when successive identification signals are detected. During data transmission, the mode can be switched over to the control command accept mode by sending a specific identification signal from the data terminal equipment.