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:
Jun. 15, 1993
Filed:
Feb. 19, 1991
Kanji Ohnishi, Kanagawa, JP;
Masato Yamagata, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A cordless telephone is comprised of a base unit, a handset unit, and a telephone answering machine (TAM) unit. In a normal communication mode, audio signals from the handset unit are coupled to the telephone line network through the base unit. In an automatic answering mode, an audio signal from the telephone line network is recorded at the TAM unit through the base unit. When a predetermined key of the handset unit is operated, a control signal is supplied to the TAM unit by way of a transmitting circuit in the handset unit, a receiving circuit in the base unit, a transmitting circuit in the base unit and a receiving circuit of the TAM unit to place the TAM unit in a reproduction mode, whereby previously recorded audio signals are reproduced and supplied to the handset unit via a transmitting circuit in the TAM unit, the receiving circuit in the base unit, the transmitting circuit in the base unit and a receiving circuit in the handset unit.