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:
Nov. 15, 1977
Filed:
Apr. 29, 1976
Applicant:
Inventor:
Kazuo Hashimoto, Tokyo, JA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ;
Abstract
A telephone answering device comprises an oscillator circuit for first producing a peculiar signal such as a small Morse code 'K' twittering to notify a caller that he is calling a telephone answering device and thereafter intermittently producing 'beep' tone signal to notify him that he can continue to send his message, the production of these signals being controlled by the combination of a multi-vibrator circuit and a buffer circuit connected between the oscillator circuit and the multi-vibrator circuit, thereby eliminating an outgoing message tape of a conventional telephone answering device.