Title:
COMMUNICATION EQUIPMENT
Document Type and Number:
Japanese Patent JP3661342
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a communication equipment that facilitates inter-slave-set communication in the communication equipment making communication through the use of a frequency hopping system.
SOLUTION: Radio communication is conducted by using a frequency hopping system between an external connection master set 1, a voice slave set 3a such as a portable telephone set and a radio adaptor 4a for computer interfacing, the master set 1 divides one frame into a frequency stabilization 1st hop slot 70 and a communication data slot 71 for the adaptor 4a, a 2nd hop slot 72 and a voice slot 75, and makes hopping based on different tables from the data slot 71 and the voice slot 75. The adaptor 4a makes hopping the same as a frequency of the voice slot 71 and has a data slot 91 synchronously with the data slot 71 and a call response slot 92 to make a call and reply to other adaptor. In the case of making communication with the other adaptor, the data slot 91 is extended and the communication is made with a different frequency from that of other device.
Inventors:
Kazuya Taki
Application Number:
JP7013097A
Publication Date:
June 15, 2005
Filing Date:
March 24, 1997
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
H04B1/713; H04L7/00; H04M11/06; H04W72/04; H04W84/10; H04W92/18; (IPC1-7): H04B1/713; H04L7/00; H04M11/06; H04Q7/38
Domestic Patent References:
| JP8317466A | ||||
| JP5503194A | ||||
| JP8265231A | ||||
| JP9219708A | ||||
| JP9116526A |
Foreign References:
| WO1996018245A1 |
Attorney, Agent or Firm:
Yasuo Ishikawa
Tatsuo Egami
Koji Yamamoto
Tatsuo Egami
Koji Yamamoto
Previous Patent: LAMINATED POLYESTER FILM FOR BONDING METAL PLATES
Next Patent: MARKER STARTING DEVICE OF RIDING-TYPE AGRICULTURAL WORK MACHINE
Next Patent: MARKER STARTING DEVICE OF RIDING-TYPE AGRICULTURAL WORK MACHINE