System including a server and at least a client

• US 7,949,725 B2
• Filed: 03/26/2008
• Issued: 05/24/2011
• Est. Priority Date: 03/26/2007
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Yano, Takanori
• Primary Examiner(s): NGUYEN, PHUOC H
• Application Number:
  US12/055,994
• Publication Number:
  US 20080244002A1
• Time in Patent Office: 1,154 Days
• Field of Search: 709/203, 709/217, 709/219
• US Class Current: 709/217
• CPC Class Codes: H04N 19/162 User input
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/17 the unit being an image region, e.g. an object
• CPC Class Codes: H04N 19/186 the unit being a colour or a chrominance component
• CPC Class Codes: H04N 19/64 characterised by ordering of coefficients or of bits for transmission
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards
• CPC Class Codes: H04N 21/21 Server components or server architectures
• CPC Class Codes: H04N 21/23 Processing of content or additional data; Elementary server operations; Server middleware
• CPC Class Codes: H04N 21/234327 by decomposing into layers, e.g. base layer and one or more enhancement layers
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/4728 for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region
• CPC Class Codes: H04N 21/6377 directed to server one-way streaming services wherein the source is controlled by the destination H04L65/613

Abstract

A system includes a server and at least a client. The sever transfers a code data to the client. The client receives the code data from the server and decodes the code data. The client includes a requesting unit configured to request a code data stored in the server, a first receiving unit configured to receive the code data from the server, a decoding unit configured to decode the code data which is received from the server and a display unit configured to display an image data which is generated by the decoding unit. In addition, the server includes a second receiving unit configured to receive the request from a client, a selecting unit configured to select the code data which is requested from the client, a transferring unit configured to transfer the code data which is selected by the selecting unit, wherein the code data is a part of at least code data of JPM file.

Claims

1. A system comprising:

a client including

a requesting unit configured to request a code data stored in the server,

a first receiving unit configured to receive the code data from the server,

a decoding unit configured to decode the code data which is received from the server, and

a display unit configured to display an image data which is generated by the decoding unit; and

a server including

a second receiving unit configured to receive the request from a client,

a selecting unit configured to select the code data which is requested from the client,

a transferring unit configured to transfer the code data which is selected by the selecting unit,

wherein the code data is a part of at least code data of JPM (JPEG2000 Multi Layer) file; and

a calculating unit configured to calculate a ratio of character area to picture area in the code data of each object,

wherein the server uses the ratio to set a priority order of transferring the objects in the code data to the client.

2. The system as claimed in claim 1,

wherein the server is configured to transfer a remaining object of the code data that is requested from the client after transferring an object that includes the code data which is requested from the client.

3. The system as claimed in claim 1,

wherein the server is configured to transfer all objects that include the code data which is requested from the client sequentially, and

the client is configured to decode the code data which is received from the server and to display an image data which is generated by decoding.

4. The system as claimed in claim 1,

wherein the client is configured to transfer an interrupt signal to the server, and

the server is configured to stop transferring the objects when the server receives the interrupt signal from the client.

5. A method comprising:

requesting a code data stored in a server;

receiving the request from a client;

receiving the code data from the server;

a selecting the code data which is requested from the client, said code data including plural objects, and said code data is a part of at least code data of JPM (JPEG2000 Multi Layer) file;

calculating a ratio of character area to picture area in the code data of each object;

setting a priority order of transferring the objects in the code data to the client;

transferring the code data which is selected by the selecting, wherein the objects in the code data are transferred according to the priority order;

decoding the code data which is received from the server; and

displaying an image data which is generated by the decoding.

6. The method as claimed in claim 5, further comprising:

transferring a remaining object of the code data that is requested from the client after transferring an object that includes a code data which is requested from the client.

7. The method as claimed in claim 5, further comprising:

transferring all objects that include the code data which is requested from the client sequentially.

8. The method as claimed in claim 5, further comprising:

transferring an interrupt signal to the server; and

stopping a transferring of the objects when the server receives the interrupt signal from the client.

9. A non-transitory computer readable storage medium, encoded with instructions, which when executed by a system of a client and a server causes the system to implement a method comprising:

requesting a code data stored in the server;

receiving the request from the client;

receiving the code data from the server;

a selecting the code data which is requested from the client, said code data including plural objects, and said code data is a part of at least code data of JPM (JPEG2000 Multi Layer) file;

calculating a ratio of character area to picture area in the code data of each object;

setting a priority order of transferring the objects in the code data to the client;

transferring the code data which is selected by the selecting, wherein the objects in the code data are transferred according to the priority order;

decoding the code data which is received from the server; and

displaying an image data which is generated by the decoding.