US 2004/0202109 A1 · Data distribution server and terminal apparatus

Abstract

A radio line is easily influenced in its nature by attenuation or reflection of electromagnetic wave or the like and surrounding environment. Due to this fact, a variation of the data transfer speed frequently occurs at the time of image streaming to become a hindrance of reproduction of image at the receiving terminal. The distribution server is provided with means for multiplexing information indicating the transmission start time for the image data and means for switching an image bit rate in response to a request from the receiving terminal. The receiving terminal is provided with means for using information indicating a transmission start time for the image data, monitoring the receiving bit rate and informing the request for transmission of the most-suitable image bit rate in response to its result.

Claims13

Dependent claims

A distribution server comprising:

an input unit for image data;
an image data re-construction unit;
a communication unit connected to a terminal;
and
a monitoring trigger information generating unit for generating a monitoring trigger information that said terminal performs a receiving bit rate monitoring, wherein
said monitoring trigger information generating unit inserts the generated monitoring trigger into image data inputted through said input unit and outputs it to the terminal through said communication unit.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/649,702Filed 28 Aug 2003

Priority

JP 2003-10595610 Apr 2003

Published

14 Oct 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04N 21/234354
Involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements: by…
H04N 7/17318
Transmission or handling of upstream communications: direct or substantially direct transmission and handling of requests
H04N 21/41407
Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance: embedded in a portable device, e.g. video client on a mobile…
H04N 21/44209
Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times…

Data distribution server and terminal apparatus

Life of this patent

Data distribution server and terminal apparatus

Life of this patent

Abstract

Claims13