Title:
非線形コーデックのための事前符号化
Document Type and Number:
Japanese Patent JP2004506345
Kind Code:
A
Abstract:
A precoding and decoding system to achieve rates higher than 33.6 kbps in the analog modem to digital modem direction. The system modifies the standard Tomlinson Harashima Precoding algorithm to adapt it for use in PCM modems. Instead of an arithmetic modulo operation that is implemented in the transmitter, the invention defines a Discrete Modulo Operation that performs the function of limiting the amplitude of the transmitted signal.
Inventors:
Doug Deriven, Nuri, Earl.
Application Number:
JP2001542966A
Publication Date:
February 26, 2004
Filing Date:
December 08, 2000
Export Citation:
Assignee:
Agere Systems Guardian Corporation
International Classes:
H03M7/50; H04L25/49; H04L25/497; (IPC1-7): H03M7/50
Attorney, Agent or Firm:
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Previous Patent: テレビジョン受信機におけるデュアル自動利得制御による遅延設定を提供...
Next Patent: プリペイドカードシステム／ＰＩＮシステムに対するインターネットベー...
Next Patent: プリペイドカードシステム／ＰＩＮシステムに対するインターネットベー...