Communication system
AssigneeNEC Corporation
InventorJunichi Nomura
Life of this patent
Estimating the term…
Abstract
A communication system includes transmitters and a receiver. The receiver includes a template extractor configured to extract a template consisting of a common portion and a variable portion of transmission data received from the transmitters on the basis of transmitter identification information included in the transmission data and content of the transmission data and a template transmitter configured to transmit the extracted template to the transmitters. The transmitters each include a transmission unit that compresses the transmission data using the template and transmits the compressed transmission data to the receiver.
Claims17
A communication system comprising:
- transmitters;
- and
- a receiver, wherein
- the receiver comprises:
- a template extractor configured to extract a template consisting of a common portion and a variable portion of transmission data received from the transmitters on the basis of transmitter identification information included in the transmission data and content of the transmission data;
- and
- a template transmitter configured to transmit the extracted template to the transmitters, and
- the transmitters each comprise a transmission unit configured to compress the transmission data using the template and to transmit the compressed transmission data to the receiver, wherein
- the template extractor of the receiver stores the extracted template in the receiver, and
- the receiver comprises a response unit, wherein when the receiver receives transmission data compressed using a template from one of the transmitters, the response unit determines whether the template used to compress the transmission data is valid, on the basis of the template stored in the receiver, and if the response unit determines that the template is not valid, the response unit notifies the one transmitter that the template is invalid.
A receiver comprising:
- a template extractor configured to extract a template consisting of a common portion and a variable portion of transmission data received from transmitters on the basis of transmitter identification information included in the transmission data and content of the transmission data;
- and
- a template transmitter configured to transmit the extracted template to the transmitters,
- wherein the template extractor stores the extracted template in the receiver, the receiver further comprising a response unit, wherein when the receiver receives transmission data compressed using a template from one of the transmitters, the response unit determines whether the template used to compress the transmission data is valid, on the basis of the template stored in the receiver, and if the response unit determines that the template is not valid, the response unit notifies the one transmitter that the template is invalid.
A communication method performed by a communication system including transmitters and a receiver, the communication method comprising:
- extracting, by the receiver, a template consisting of a common portion and a variable portion of transmission data received from the transmitters on the basis of transmitter identification information included in the transmission data and content of the transmission data and transmitting the extracted template to the transmitters;
- and
- compressing, by the transmitters, the transmission data using the template and transmitting the compressed transmission data to the receiver, wherein
- the receiver stores the extracted template in the receiver,
- when the receiver receives transmission data compressed using a template from one of the transmitters, the receiver determines whether the template used to compress the transmission data is valid, on the basis of the template stored in the receiver, and
- if the receiver determines that the template is not valid, the receiver notifies the one transmitter that the template is invalid.
Dependencies are inferred from the claim text.