Title:
RADIO DATA TRANSMITTER
Document Type and Number:
Japanese Patent JP3949556
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable a radio data transmitter to surely establish frame synchronization without causing erroneous synchronization even when a radio frame becomes longer in length and, at the same time, to inform a user channel of the abnormality of a radio section.
SOLUTION: At the time of making transmission, a fluctuating frame synchronous pattern imparting section 118 imparts a fluctuation frame synchronous pattern which changes at every frame to a radio frame used for data transmission in a radio section and a fixed frame synchronous pattern imparting section 117 imparts a fixed frame synchronous pattern fixed at each frame to the radio frame. At the time of making reception, a fluctuating frame synchronous pattern detecting section 132 and a fixed frame synchronous pattern detecting section 133 respectively detect frame synchronization from the fluctuating frame synchronous pattern and fixed frame synchronous pattern of a received radio frame.
Inventors:
Hidetaka Yoshikawa
Tadayuki Yoshino
Tadayuki Yoshino
Application Number:
JP2002292449A
Publication Date:
July 25, 2007
Filing Date:
October 04, 2002
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04L7/08; H04B7/204; (IPC1-7): H04L7/08; H04B7/204
Domestic Patent References:
| JP63292841A | ||||
| JP2073740A | ||||
| JP4038028A | ||||
| JP57211848A | ||||
| JP2001203673A |
Attorney, Agent or Firm:
Takahisa Kimura