Method for transmitting/receiving portions of an audio signal based on a priority of each portion

• US 6,363,240 B2
• Filed: 01/20/1999
• Issued: 03/26/2002
• Est. Priority Date: 08/06/1996
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ito, Seigo
• Primary Examiner(s): Urban, Edward F.
• Application Number:
  US09/234,259
• Publication Number:
  US 20010001763A1
• Time in Patent Office: 1,161 Days
• Field of Search: 455/3.1, 455/6.3, 455/404, 455/62, 455/63, 455/521, 455/527, 455/528, 455/3.01, 455/3.06
• US Class Current: 455/3.06
• CPC Class Codes: G01C 21/28 with correlation of data from several navigational instruments
• CPC Class Codes: G01S 19/36 relating to the receiver frond end
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
• CPC Class Codes: G01S 2205/002 for traffic control, mobile tracking, guidance, surveillance or anti-collision
• CPC Class Codes: G01S 2205/008 using a mobile telephone network

Abstract

A position measuring apparatus includes a first position measuring device for position measuring a first position by receiving a first radio wave, a second position measuring device for position measuring a second position by receiving a second radio wave, an evaluating unit for evaluating uncertainty of data derived from the first position measuring device and/or the second position measuring device, and a selecting element for selecting data from the first position measuring device or the second position measuring device based on an output signal of the evaluating unit.

Claims

1. A method for transmitting an audio signal when a portion of said audio signal is missing, comprising the steps of:

dividing said audio signal into a plurality of portions, wherein each portion comprises data corresponding to a designated frequency band of a plurality of frequency bands;

assigning a priority to each portion of said audio signal; and

transmitting said portions of said audio signal in a predetermined order based on said priority of each portion of said audio signal, such that a quality of said audio signal is improved as portions of a low priority are successively transmitted.

2. The method as claimed in claim 1, wherein said predetermined order is based on said priority and on said frequency bands of said audio signal.

3. The method as claimed in claim 1, wherein said predetermined order is an order based on said priority and information relating to one of a left plus right component and a left minus right component of said audio signal.

4. A method for receiving an audio signal when a portion of said audio signal is missing, comprising the steps of:

receiving said audio signal;

detecting a condition of said received audio signal including a rate at which said audio signal is received; and

when said rate is slower than a predetermined rate, receiving portions of said audio signal in a predetermined order based on a priority of each portion of said audio signal,

wherein each portion comprises data corresponding to a designated frequency band of a plurality of frequency bands, such that a quality of said audio signal is improved as portions of a low priority are successively received.

5. The method as claimed in claim 4, wherein said predetermined order is based on said priority and on said frequency bands of said received audio signal.

6. An audio signal receiving method as claimed in claim 4, wherein said information having higher priority than said predetermined priority corresponds to information relating to one of a left plus right component and a left minus right component of said received signal.