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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsKoichi Hata, Akihiro Miyazaki, Koji Imura, Daiji Ido
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In a header decompression apparatus 709, a header decompressor 703 refers to reference information stored in a reference information manager 707 to decompress a compressed header of a packet received by a packet receiver 704. An error detector 702 detects a CRC error in the packet with its header decompressed by the packet receiver 704, and outputs only a correct packet. A successive error counter 705 counts the number of successive errors detected by the error detector 702. A successive decompression success counter 706 counts the number of decompression successes that successively appear. By referring to these counted numbers, an update request unit 708 transmits an update request to a transmitting side as required. A reference information manager 707 manages the reference information for header decompression. With this structure, the header decompression apparatus can request update of the reference information based on the state of the error.
A header decompression apparatus for decompressing a compressed header of a packet for transmission by referring to reference information being the same as reference information referred to for header compression by a transmitting side, said apparatus comprising:
The header decompression method for decompressing a compressed header of a packet for transmission by referring to stored reference information that is the same as reference information referred to for header compression by a transmitting side, said method comprising:
A computer-readable recording medium with a program recorded therein, the program being executrd in a computer system for carrying out header decompression of decompressing a compressed header of a packet for transmission by referring to stored reference information that is the same as reference information referred to for header compression by a transmitting side, said program including computer system readable instructions capable of instructing the computer system to implement a method comprising:
A program executed in a computer system for carrying out header decompression of decompressing a compressed header of a packet for transmission by referrring to reference information the same as reference information referred to for header compression by a transmitting side, said program including computer system readable instructions capable of instructing the computer system to implement the method comprising:
Dependencies are inferred from the claim text.