David John

Title: David John - Innovator in Digital Audio Recording Technology

Introduction

David John is a notable inventor based in Buckinghamshire, GB. He has made significant contributions to the field of digital audio recording technology. His innovative approach has led to the development of a unique method and apparatus for storage and reproduction of audio signals.

Latest Patents

David John holds a patent for a "Storage and reproduction method and apparatus" that focuses on digital audio recording equipment. This invention is designed to record modulated signals, such as RF test signals generated by test modems. The technology allows for down-conversion of modulated signals that are outside the audio frequency range into the audio frequency range using a mixer, local oscillator, and filter. The digitally converted data can be recorded onto various media, including DAT, CD, or computer memory. The recorded data is then disseminated for reproduction by a suitable digital audio player. Furthermore, the reproduced audio signal can be up-converted to the desired radio frequency, making it useful for testing demodulators, codecs, or transceivers.

Career Highlights

David John is currently employed at the International Mobile Satellite Organization, where he continues to innovate in the field of digital audio technology. His work has been instrumental in advancing the capabilities of audio recording and reproduction systems.

Collaborations

David collaborates with various professionals in his field, including his coworker Paul Francis Alexander. Their combined expertise contributes to the ongoing development of cutting-edge audio technologies.

Conclusion

David John's contributions to digital audio recording technology exemplify the spirit of innovation. His patent and work at the International Mobile Satellite Organization highlight his commitment to advancing audio technology.