Title:
MULTIPLE PSEUDO-CARRIER GENERATOR AND METHOD USING FREQUENCY CONVERSION
Document Type and Number:
Japanese Patent JP3445252
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a majority pseudo-carrier generator, which is capable of generating majority pseudo-carriers, easily adjusting a signal transmission time, and restraining an inter-carrier interval from occurring, without modifying the existing base station system.
SOLUTION: This majority pseudo-carrier generator comprises a receiving means for receiving speech communication signals from the output terminal of an existing base station by the use of a distributor, a directional coupler, a coupler, and an antenna; a generating means for generating majority pseudo- carriers by the use of two pseudo-carrier generators; a switching means for switching the pseudo-carrier from one to another; a time control means for controlling the transmission time of majority pseudo-carrier signals; a time control means for controlling GAP time between the pseudo-carriers; an amplifying means for amplifying multiple pseudo-carriers with a single power amplifier; a coupling means for coupling speech communication signals and pseudo-carrier signals together; and a transmission means for transmitting multiple pseudo- carrier signals through another antenna.
Inventors:
Yu Tae Kim
Lee Itao
Settling
Lee Itao
Settling
Application Number:
JP2001052685A
Publication Date:
September 08, 2003
Filing Date:
February 27, 2001
Export Citation:
Assignee:
YOUNGWOO TELECOM INC.
International Classes:
H04B1/04; H04B7/155; H04W74/08; (IPC1-7): H04B1/04; H04Q7/22
Domestic Patent References:
| JP200153626A | ||||
| JP2000508148A |
Attorney, Agent or Firm:
Mitsuteru Soga (7 outside)