The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 24, 1994

Filed:

Oct. 29, 1992
Applicant:
Inventors:

Kei Kawase, Komae, JP;

Shigeki Ishikawa, Tokyo, JP;

Shunichi Asaka, Chofu, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ; G06F / ;
U.S. Cl.
CPC ...
36442402 ; 36442401 ; 180167 ; 31856812 ; 901-1 ;
Abstract

A mobile machine having active sensors for allowing similar energy waves to coexist close to each other. A mobile machine enters an exclusive transmission mode with respect to energy wave transmission when interference can occur between its own active sensor and the sensors of mother mobile machines. Prior to the transmission of energy waves, the mobile machine determines whether or not any competing mobile machine has acquired the energy wave transmission right. If not, it broadcasts a declaration of its acquisition of the right to transmit energy waves and transmits energy waves. If the transmission right has already been acquired by a competing mobile machine, it adds its own identification to a transmission queue, and increments the transmission queue each time it receives a declaration of renunciation of the right to transmit energy waves from a competing mobile machine.


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