Title:
通信端末装置
Document Type and Number:
Japanese Patent JP3551890
Kind Code:
B2
Abstract:
A communication terminal device (F) having an error correction function defined in ITU-T Recommendations T.30. The communication terminal device includes a modem (3) that can transmit data to a remote device in accordance with a plurality of modulation methods and communication speeds. A controller (1) associated with the terminal device (F) changes a current modulation method of the modem (3) to a different modulation method when an all-frame-error is detected predetermined times during data transmission. The controller (1), however, maintains the current modulation method and reduces a communication speed when a frame error other than the all-frame-error is detected prescribed times (Fig. 1).
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Inventors:
Murata Toshinori
Hiroshi Kubo
Hiroshi Kubo
Application Number:
JP2000107488A
Publication Date:
August 11, 2004
Filing Date:
April 10, 2000
Export Citation:
Assignee:
Murata Machinery Co., Ltd.
International Classes:
H04N1/32; H04L1/00; H04L29/02; H04L29/08; H04M11/00; H04N1/333; (IPC1-7): H04N1/32; H04L1/00; H04L29/02; H04L29/08; H04M11/00
Domestic Patent References:
| JP2000092303A | ||||
| JP10341325A | ||||
| JP9065091A | ||||
| JP11027493A |
Attorney, Agent or Firm:
Hiroyuki Nakai