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. 16, 1998
Filed:
Apr. 19, 1995
Kazuhiro Kudoh, Tokyo, JP;
Shigeki Minata, Shizuoka, JP;
NEC Corporation, Tokyo, JP;
Abstract
A radio selective call receiver that alerts a user to reception of a call signal by mechanical vibration achieves miniaturization and reduction in thickness by using a sounding body as a reception informing means. The sounding body is selected among reception informing means by a switch. The sounding body generates a non-audio frequency, thus preventing the mechanical vibration from producing an undesired sound. The bottom of the receiver is adapted to be in close contact with a human body wearing the receiver. When a call signal is received, the sounding body oscillates at the non-audio frequency, the sound wave passes through slits to cause vibration, and the user carrying the receiver is alerted tactilely that a call signal is being received.