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. 23, 1993
Filed:
Dec. 23, 1991
John C Dzung, Plantation, FL (US);
Scott H Richards, Sunrise, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A radio or speaker-microphone unit (10) includes a radio housing (11) and a first (17') or second (17') battery housing. A speaker (33) is disposed in the radio housing (11) and two microphones (34' and 34') are disposed respectively, in the radio housing (11) and in the second battery housing (17'). The battery housings (17' and 17') are selectively attachable with the radio housing (11) to provide a selection between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch (37) senses which of the battery housings (17', 17') is attached and disables (36) the microphone (34') in the radio housing (11) if the second battery housing (17') is attached.