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. 16, 2001
Filed:
Jul. 28, 1998
Michael Mou, Tu-Cheng, TW;
Fang-Te Chen, Tu-Cheng, TW;
Obtel Incorporated, Taipei Hsien, TW;
Abstract
An automatic power supplying device for providing power for a CPU of a telephone to activate the CPU and wake up a downstream circuit including for example a speech processor, a voice amplifier, etc., is disclosed. The automatic power supplying device includes a recharging circuit providing the power for the CPU for a predetermined period when there is a coining phone call and the telephone is hooked off. After the predetermined period, the CPU is supplied thereto power which is transmitted along the telephone line and accompanies the phone call signal. The CPU of the telephone is activated only when the telephone is in a hook-off state according to the present invention so that the life span of the CPU can be extended, compared to the conventional telephone.