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:
Dec. 19, 2000
Filed:
Jun. 01, 1998
Tetsuya Kawaguchi, Isehara, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A communications data terminal apparatus that is capable of performing a plurality of communications controls includes a first communications controller performing communications functions including V.8 and V.34 procedures, a second communications controller performing a modem function having a data signaling rate slower than that of the first communications controller. A timer counts a predetermined time period after the first controller sends a CM signal during a calling mode, or a JM signal during a receiving mode. A system controller is used to 1) determine whether the first communications controller receives the JM signal from a remote data terminal apparatus within the predetermined time; 2) stop sending the CM signal and receive a DIS signal when it is determined that no JM signal is received within the predetermined time when the apparatus is operating in the during the calling mode; 3) determines whether the first communications controller receives a CJ signal within the predetermined time; and 4) stop sending the JM signal and sends the DIS signal when no CJ signal is received within the predetermined time when the apparatus is operating in receiving mode.