H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/04 (2006.01) H01L 33/00 (2010.01) H04B 10/06 (2006.01) H04B 10/14 (2006.01) H04B 10/26 (2006.01) H04B 10/28 (2006.01)
Patent
CA 2703159
An infrared transmitter is obtained that transmits a signal by changing a luminance of an infrared emitting LED, the infrared transmitter including: a transmission signal generating unit; a biasing voltage generating unit that generates a biasing voltage according to a magnitude of a transmission signal; a signal/voltage mixing unit that mixes the transmission signal and the biasing voltage; and a voltage-current conversion unit that converts a voltage into a current, in which the LED is driven by the current obtained by the conversion in the voltage-current conversion unit, so that power consumption efficiency can be improved.
L'invention concerne un émetteur infrarouge qui comporte des moyens de génération de signal d'émission pour émettre un signal par un changement de luminance d'une DEL qui émet des rayons infrarouges, des moyens de génération de tension de polarisation pour générer une tension de polarisation correspondant à la dimension du signal d'émission, des moyens de mélange de signal/tension pour mélanger le signal d'émission et la tension de polarisation, et des moyens de conversion tension-courant pour convertir la tension en un courant. L'émetteur infrarouge excite la DEL par le courant généré par les moyens de conversion tension-courant et améliore l'efficacité d'utilisation de puissance.
Kabushiki Kaisha Audio-Technica
Nelligan O'brien Payne Llp
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