Title:
ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM RECEIVER
Document Type and Number:
Japanese Patent JP3535900
Kind Code:
B2
Abstract:
PURPOSE: To always automatically select and listen to data best received among plural data sent multiplexingly.
CONSTITUTION: N-sets of transmission signal alphabet data received by an antenna 1 and demodulated by N-sets of correlation detection means E are converted into data being q-sets of individual signals by a data conversion circuit 3. Each absolute value of m-sets of transmission signal alphabet data being components of data are calculated by absolute value arithmetic means A1, A2 and an average of the absolute values of each data is calculated by mean value arithmetic means B1, B2. A maximum value discrimination means 6 discriminates a maximum value among the q-sets of average values. A data selection means 12 selects data representing a maximum mean value according to the result of discrimination and a PCM decoder 13 demodulates the data into an analog signal, it is amplified by an amplifier circuit and sounded from a speaker as a voice.
More Like This:
Inventors:
Miyano, Takeshi
Application Number:
JP25848494A
Publication Date:
June 07, 2004
Filing Date:
October 24, 1994
Export Citation:
Assignee:
FUJITSU TEN LTD
International Classes:
H04J11/00; H04B1/10; H04B1/16; H04B14/00; (IPC1-7): H04J11/00; H04B1/10; H04B1/16
Attorney, Agent or Firm:
西教 圭一郎
Previous Patent: DUTY CORRECTION CIRCUIT
Next Patent: ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM RECEIVER
Next Patent: ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM RECEIVER