Patent
Short range inductively coupled communication system employing time variant modulation
TLDR
In this article, a short range magnetically coupled wireless communication system was proposed, which employs time variant modulation of a high repetition rate pulse stream and magnetic coupling between a transmission magnetic element and a receiving magnetic element.Abstract:
A short range magnetically coupled wireless communication system (fig. 1) employs time variant modulation of a high repetition rate pulse stream and magnetic coupling between a transmission magnetic element and a receiving magnetic element (16). The pulse stream is modulated by an input audio frequency signal in the time domain, for example through pulse position modulation (2A), pulse width modulation or pulse symmetry modulation (2B). The receiving magnetic element is coupled to a demodulator circuit which detects the transmitted pulses induced in the receiving magnetic element and reproduces the audio frequency signal (fig. 6). Transmission over short range is thus efficiently accomplished through magnetic coupling in a simple low cost low power consumption communication system.read more
Citations
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References
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PatentDOI
Wireless audio passenger entertainment system (WAPES)
TL;DR: A wireless aircraft passenger entertainment system utilizing simultaneous transmission of low frequency signals for power supply rectification and radiofrequency signals for information demodulation between transmission lines parallel with seat tracks in an aircraft passenger compartment and seat leg mounted pick up loops.
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Security system for a stand-alone computer
TL;DR: In this paper, a security system for stand alone and portable computer hosts which utilizes both a hardware key and a password key to enable-access to the computer host is presented, where the entry of the password key and the hardware key is monitored by the keyboard controller.
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Method for the electrical stimulation of the auditory nerve and multichannel hearing prosthesis for carrying out the method
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Contactless linking device for interconnecting data bus sections
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