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:
Sep. 23, 2003
Filed:
Mar. 01, 2000
Masaru Nonogaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A portable telephone may include an AV processing block ( ), a telephone processing block ( ) and a common processing block ( ). A power management controller ( ) may control a power supply of each block, i.e. operation and non-operation. The power management controller ( ) may have connected thereto a power supply key (K ) and a power supply decision key (K ). When depressing the key (K ) sequentially, the user can repeatedly select an AV mode, a PHONE mode and an AV/PHONE mode. A user can determine the selected mode by depressing the key (K ). In the area in which a use of an electronic device which may generate electromagnetic waves is prohibited, a user can use this portable telephone in the AV mode. Also, outside the telephone service area, a user can use this portable telephone in the AV mode, thereby making it possible to avoid electric power from being uselessly consumed when the power supply of the telephone processing block ( ) is held at ON state. Thus, the portable telephone of the present invention is easier to handle.