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:
Mar. 06, 2001
Filed:
Mar. 22, 1999
Keisaku Hayashi, San Diego, CA (US);
Hidehiko Akatsuka, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
In a system having a response hold function as a standard function such as CDMA system, a telephone apparatus transmits a response hold request to a control center when an End key is operated upon arrival of an incoming telephone call from another telephone apparatus. Receiving the response hold request, the control center notifies the other telephone apparatus originating the telephone call of a response hold state. In a system with no response hold function provided as a standard function such as TACS system, the telephone apparatus transmits a response hold request to the control center when the End key is operated upon arrival of an incoming telephone call from the other telephone apparatus. Receiving the response hold request, the control center establishes a telephone conversation state between the telephone apparatuses. Then, hold state sound is transmitted by the telephone apparatus to the other telephone apparatus. Thus, the portable telephone apparatus operating under the TACS system is enabled to execute the response hold function of the CDMA system.