Communication apparatus, communication system, communication method, and program for improved data transfer efficiency

Patent metadata

Field	Value
Publication number	US-9591105-B2
Application number	US-36076909-A
Country	US
Kind code	B2
Filing date	Jan 27, 2009
Priority date	Jan 29, 2008
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A communication apparatus includes a physical layer to perform signal transmission/reception with another communication end, and a protocol conversion section (PCL) to connect an upper level user application and the physical layer. The protocol conversion section includes a parameter extraction section to extract a prescribed parameter from communication start request data (CBW) transmitted from the user application, and a header addition section to add a header containing the extracted parameter to transmission data transmitted from the user application, and the physical layer transmits the transmission data with the header.

First claim

What is claimed is:

1. A communication method, comprising:
in a first communication apparatus including a chip configured to implement a physical layer for data transmission or reception with a second communication apparatus and a central processing unit (CPU) configured to connect an upper level application and the physical layer:
selecting an upper level protocol of the first communication apparatus that matches an upper level protocol of the second communication apparatus;
extracting a parameter from a communication request transmitted from the upper level application of the first communication apparatus, wherein the extracted parameter includes an end point number indicating a direction of transfer of the data and a size of the data to be transferred,
wherein a location of a storage area into which the data is to be written is determined based on the end point number;

dividing the data into a first data piece and a plurality of subsequent data pieces, each of the first data piece and the plurality of subsequent data pieces having a data amount;
adding a header containing the extracted parameter to only the first data piece; and
transmitting the first data piece to which the header is added and the plurality of subsequent data pieces through the physical layer.

2. A first communication apparatus, comprising:
a chip configured to implement a physical layer for transmission or reception of data with a second communication apparatus; and
a central processing unit (CPU) configured to:
connect an upper level application and the physical layer;
select an upper level protocol of the first communication apparatus that matches an upper level protocol of the second communication apparatus;
extract a parameter from a communication request transmitted from the upper level application of the first communication apparatus, wherein the extracted parameter includes an end point number that indicates a direction of transfer of the data and a size of the data to be transferred,
wherein a location of a storage area into which the data is to be written is determined based on the end point number;
divide the data into a first data piece and a plurality of subsequent data pieces, wherein each of the first data piece and the plurality of subsequent data pieces have a data amount; and
add a header that contains the extracted parameter to only the first data piece, and
wherein the chip is further configured to transmit the first data piece to which the header is added, and the plurality of subsequent data pieces.

3. The first communication apparatus according to claim 2 , wherein the CPU is further configured to acquire the parameter from data received from the second communication apparatus through the physical layer.

4. The first communication apparatus according to claim 2 , wherein the CPU is further configured to write the data to the location of the storage area based on the parameter.

5. The first communication apparatus according to claim 2 , wherein the upper level application is configured to select the upper level protocol compatible with the physical layer for the transfer of data based on a communication speed of the physical layer.

6. The first communication apparatus according to claim 2 , wherein, in an event the first communication apparatus and the second communication apparatus are configured to use multiple same protocols, the CPU is further configured to select a protocol of the multiple same protocols for data transmission.

7. A communication system, comprising:
a first communication apparatus configured to communicate with a second communication apparatus,
wherein the first communication apparatus comprises:
a chip configured to implement a physical layer for transmission or reception of data with the second communication apparatus; and
a central processing unit (CPU) configured to:
connect an upper level application and the physical layer;
select an upper level protocol of the first communication apparatus that matches an upper level protocol of the second communication apparatus;
extract a parameter from a communication request transmitted from the upper level application of the first communication apparatus, wherein the extracted parameter includes an end point number that indicates a direction of transfer of the data and a size of the data to be transferred,
wherein a location of a storage area into which the data is to be written is determined based on the end point number;

divide the data into a first data piece and a plurality of subsequent data pieces, wherein each of the first data piece and the plurality of subsequent data pieces have a data amount; and
add a header that contains the extracted parameter to only the first data piece,
wherein the first data piece to which the header is added and the plurality of subsequent data pieces are transmitted or received through the physical layer.

8. A non-transitory computer-readable medium having stored thereon a set of computer-executable instructions for causing a first communication apparatus to perform operations, comprising:
selecting an upper level protocol of the first communication apparatus that matches an upper level protocol of a second communication apparatus;
extracting a parameter from a communication request transmitted from an upper level application of the first communication apparatus, wherein the extracted parameter includes an end point number indicating a direction of transfer of the data and a size of the data to be transferred,
wherein a location of a storage area into which the data is to be written is determined based on the end point number;

dividing the data into a first data piece and a plurality of subsequent data pieces, each of the first data piece and the plurality of subsequent data pieces having a data amount;
adding a header containing the extracted parameter to only the first data piece; and
transmitting the first data piece to which the header is added and the plurality of subsequent data pieces through a physical layer.

Assignees

• Fujinaga Hiroyuki
• Ito Tsutomu
• Sony Corp

Inventors

• Fujinaga Hiroyuki
• Ito Tsutomu

Classifications

• H04L69/18 Primary

  Multiprotocol handlers, e.g. single devices capable of handling multiple protocols · CPC title