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.
Patent No.:
Date of Patent:
Dec. 04, 2007
Filed:
Sep. 28, 2006
Shigeyuki Sakura, Kawasaki, JP;
Hiroshi Suzunaga, Kawasaki, JP;
Masaru Numano, Kawaguchi, JP;
Atsushi Iwata, Higashi-Hiroshima, JP;
Yoshitaka Murasaka, Higashi-Hiroshima, JP;
Toshifumi Imamura, Higashi-Hiroshima, JP;
Shigeyuki Sakura, Kawasaki, JP;
Hiroshi Suzunaga, Kawasaki, JP;
Masaru Numano, Kawaguchi, JP;
Atsushi Iwata, Higashi-Hiroshima, JP;
Yoshitaka Murasaka, Higashi-Hiroshima, JP;
Toshifumi Imamura, Higashi-Hiroshima, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one aspect of this invention, there is provided a transmitting and receiving device including a transmitting device having a pulse width modulation encoder which generates a pulse width signal having a pulse width corresponding to the binary digital signals outputted from the plurality of sigma-delta analog-to-digital conversion units, and a light-emitting element drive unit which generates and transmits an optical signal by causing a light-emitting element to emit light on the basis of the pulse width signal, and a receiving device having an optical reception unit which converts a current signal, obtained by receiving the optical signal by a light-receiving element, into the pulse width signal, and a pulse width demodulation decoder which reconstructs the binary digital signals of a plurality of channels on the basis of the pulse width signal.