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:
Apr. 15, 2003
Filed:
Jan. 27, 2000
Jan Ragnar Rubbmark, Malmö, SE;
Magnus Svensson, Malmö, SE;
Lars Engelin, Södra Sandby, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, CH;
Abstract
The portable telecommunications apparatus has an audio input for receiving sound, an audio output for generating sound, a controller for controlling the audio input and the audio output, and an audio accessory interface for operatively connecting an external audio accessory. The accessory is capable of receiving external sound and forwarding it as audio signals to the apparatus and/or capable of generating external sound in response to audio signals supplied from the apparatus. The controller is arranged to receive a request for an audio service from any of at least two audio accessories operatively connected to the apparatus. The controller also has a logical state machine, the individual states of which represent possible operational conditions for the telecommunication apparatus and the audio accessories. The state machine defines how the request for audio service is to be handled each of the operational conditions. The controller provides the audio service to an individual audio accessory among the audio accessories, as defined by the state machine.