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:
May. 23, 1995
Filed:
Oct. 30, 1992
Shinya Haraguchi, Kanagawa, JP;
Yoshihito Ichiyama, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An automatically answerable telephone apparatus comprises a control unit having a rewritable memory for storing control data for automatically responding operation and operative to control a line signal processor and a recording and reproducing device, a writable non-volatile memory, a power source for supply a power supply voltage, a capacitor connected for holding the power supply voltage, and a power failure detector, wherein the control unit is operative, with the power supply voltage discharged by the capacitor to remove operating portion other than the control unit and the writable non-volatile memory from the power source and to transfer the control data for automatically responding operation from the rewritable memory to the writable non-volatile memory for preserving the control data when power failure occuring in the power source is detected by the power failure detector.