公开(公告)号：CA2448826A1

公开(公告)日：2002-12-05

申请号：CA2448826

申请日：2002-05-24

Applicant: SONY CORP

Inventor： YAMASHITA KEI ,  KAWAGUCHI DAISUKE ,  IKEDA KAZUYUKI ,  YOSHIKAWA MUNEHIRO ,  YOSHIDA HIDEKI ,  ONISHI MANABU ,  MAEDA SATORU

IPC: H04L29/06 ,  H04N5/38 ,  H04N5/44 ,  H04L12/66 ,  H04M11/06 ,  H04N7/08 ,  H04L12/54

Abstract: A transmission/reception apparatus enabling a high-speed processing and a hi gh extensibility when performing a communication protocol processing. In the transmission/reception apparatus transmitting/receiving data according to a predetermined communication protocol, the communication protocol processing is constituted so as to be able to be executed by both of hardware (a first and a second communication protocol processor) and software (a first and a second controller). Thus, for example, the data whose processing load is heavy is processed at a high speed by executing a communication protocol processing b y hardware and the data whose processing load is light is processed by softwar e having a high extensibility. That is, hardware and software are used dependi ng on the data type.

公开(公告)号：SG74080A1

公开(公告)日：2000-07-18

申请号：SG1998003783

申请日：1998-09-21

Applicant: SONY CORP ,  NIPPON TELEGRAPH & TELEPHONE

Inventor： YAMASHITA KEI ,  TANAKA HIROYUKI ,  UTSUMI SHUSUKE ,  SHIONOZAKI ATSUSHI

IPC: H04L13/08 ,  H04L47/30 ,  H04L29/06 ,  H04L12/26 ,  G06F5/06

Abstract: A data communication protocol is implemented to control data flow between a transport layer (13) and a data link layer (11). The protocol provides two manners of data flow control. In the first control manner, when the occupancy of packet buffers of the data link layer (11) is smaller than a first threshold, the data link layer informs of the transport layer that the packet transport should be suspended, and thereafter when the occupancy is smaller than a second threshold smaller than the first one, the data link layer requests the transport layer (13) to resume the packet transfer. In the second control manner, when the amount of packets is smaller than a value determined based on the transfer rate and maximum burst size, the transport layer transfers a packet to a lower layer, and when the packet amount is larger than the value, a packet is transferred after a predetermined time passes to control the transfer rate to a predetermined one.

公开(公告)号：DE69816213T2

公开(公告)日：2004-05-27

申请号：DE69816213

申请日：1998-09-25

Applicant: NIPPON TELEGRAPH & TELEPHONE ,  SONY CORP

Inventor： YAMASHITA KEI ,  TANAKA HIROYUKI ,  UTSUMI SHUSUKE ,  SHIONOZAKI ATSUSHI

IPC: H04L13/08 ,  H04L47/30 ,  H04L29/06

Abstract: A data communication protocol is implemented to control data flow between a transport layer (13) and a data link layer (11). The protocol provides two manners of data flow control. In the first control manner, when the occupancy of packet buffers of the data link layer (11) is smaller than a first threshold, the data link layer informs of the transport layer that the packet transport should be suspended, and thereafter when the occupancy is smaller than a second threshold smaller than the first one, the data link layer requests the transport layer (13) to resume the packet transfer. In the second control manner, when the amount of packets is smaller than a value determined based on the transfer rate and maximum burst size, the transport layer transfers a packet to a lower layer, and when the packet amount is larger than the value, a packet is transferred after a predetermined time passes to control the transfer rate to a predetermined one.

公开(公告)号：DE69816213D1

公开(公告)日：2003-08-14

申请号：DE69816213

申请日：1998-09-25

Applicant: NIPPON TELEGRAPH & TELEPHONE ,  SONY CORP

Inventor： YAMASHITA KEI ,  TANAKA HIROYUKI ,  UTSUMI SHUSUKE ,  SHIONOZAKI ATSUSHI

IPC: H04L13/08 ,  H04L47/30 ,  H04L29/06

Abstract: A data communication protocol is implemented to control data flow between a transport layer (13) and a data link layer (11). The protocol provides two manners of data flow control. In the first control manner, when the occupancy of packet buffers of the data link layer (11) is smaller than a first threshold, the data link layer informs of the transport layer that the packet transport should be suspended, and thereafter when the occupancy is smaller than a second threshold smaller than the first one, the data link layer requests the transport layer (13) to resume the packet transfer. In the second control manner, when the amount of packets is smaller than a value determined based on the transfer rate and maximum burst size, the transport layer transfers a packet to a lower layer, and when the packet amount is larger than the value, a packet is transferred after a predetermined time passes to control the transfer rate to a predetermined one.

公开(公告)号：EP1392032A4

公开(公告)日：2005-11-09

申请号：EP02728134

申请日：2002-05-24

Applicant: SONY CORP

Inventor： MAEDA SATORU ,  YOSHIDA HIDEKI ,  ONISHI MANABU ,  YAMASHITA KEI ,  IKEDA KAZUYUKI ,  KAWAGUCHI DAISUKE ,  YOSHIKAWA MUNEHIRO

IPC: H04L29/06 ,  H04N5/38 ,  H04N5/44

CPC classification number: H04N5/4401 ,  H04L29/06 ,  H04L69/08 ,  H04L69/18 ,  H04N5/38 ,  H04N7/163 ,  H04N21/4126 ,  H04N21/42676 ,  H04N21/43615 ,  H04N21/43637 ,  H04N21/4782 ,  H04N21/4786 ,  H04N21/482

Abstract: A transmission/reception apparatus enabling a high-speed processing and a high extensibility when performing a communication protocol processing. In the transmission/reception apparatus transmitting/receiving data according to a predetermined communication protocol, the communication protocol processing is constituted so as to be able to be executed by both of hardware (a first and a second communication protocol processor) and software (a first and a second controller). Thus, for example, the data whose processing load is heavy is processed at a high speed by executing a communication protocol processing by hardware and the data whose processing load is light is processed by software having a high extensibility. That is, hardware and software are used depending on the data type.

公开(公告)号：EP1528476A4

公开(公告)日：2011-03-16

申请号：EP03771415

申请日：2003-07-30

Applicant: SONY CORP

Inventor： NOMURA TAKASHI ,  TOMINAGA HIROYUKI ,  SAKATA HARUHIKO ,  TAKAHASHI MASAYUKI ,  YAMASHITA KEI

IPC: G06F13/00 ,  G06F9/50 ,  G06F15/00 ,  G06F15/16 ,  G06F17/00 ,  H04L29/08

CPC classification number: G06F9/5055 ,  H04L67/16 ,  H04L67/24 ,  H04W68/00 ,  H04W92/18