Packet receiver with the influence of jitter and packet losses reduced before a buffer becomes idle due to data delays and packet receiving method using the same

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United States of America Patent

PATENT NO 7349330
SERIAL NO

09703792

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A packet receiver includes a packet memory circuit for temporarily storing received packets in a FIFO (First-In First-Out) fashion in the form of a queue. A read start threshold setting circuit sets, with respect to the length of the queue, a read start threshold at which the received packets should begin to be read out. A read comparing circuit determines whether or not the length of the queue has reached the read start threshold, and outputs a read command signal in accordance with the result of decision. In response to the read command signal, a read control circuit causes the received packets to be read out of the packet memory circuit. The packet receiver reduces the influence of the jitter of a communication network on speech quality. Also, the packet receiver reduces the influence of delays of packets by executing discard processing with the queue.

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Patent Owner(s)

  • OKI ELECTRIC INDUSTRY CO., LTD.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoyagi, Hiromi Kanagawa, JP 36 403
Hayakawa, Shinji Tokyo, JP 17 478
Shimbo, Atsushi Tochigi, JP 69 1824
Watanabe, Satoshi Tokyo, JP 499 4602

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