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:
Dec. 25, 1990
Filed:
Apr. 27, 1989
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a portable dialing unit dial data inputted through a keyboard are registered in an internal memory. When desired dial data is retrieved from the registered dial data and a dial key is pressed, the retrieved dial data is converted to corresponding tone signals and supplied to a speaker. The speaker outputs corresponding tones. A portable automatic dialing unit is acoustically coupled to a mouthpiece of a telephone set. The tones outputted from the speaker are again converted to tone signals by the telephone set, and transmitted to a telephone line. A switchboard is driven by the tone signals. The unit includes two modes: The first mode includes registered target numbers and the second mode includes data for special telephone service. The target number in the first mode can be inserted into any position of the data in the second mode.