This inventor holds 2 USPTO granted patents, plus 3 CIPO patents. Top assignee: Electronics and Telecommunications Research Institute. Active years: 2009-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2009-2010
Title: Innovations of Dae-Jin Kim in Digital Television Technology
Introduction
Dae-Jin Kim is a notable inventor based in Gwangju, South Korea. He has made significant contributions to the field of digital television technology, holding 2 patents that showcase his innovative approach to enhancing television transmission and reception.
Latest Patents
One of his latest patents is a digital television transmitter and receiver designed for transmitting and receiving dual streams using a 4-level vestigial side band robust data. This invention aligns with the DTV standards (A/53) set by the Advanced Television System Committee (ATSC). It provides a 4-VSB DTV transceiver that improves the reception performance of a receiver by transmitting and receiving dual streams composed of normal data and robust data without increasing average power, regardless of the mixing ratio of the normal and robust data. The transceiver includes an encoding unit that encodes the robust data to be mapped to one of two groups with four levels: {-5, -3, 1, 7} and {-7, -1, 3, 5}.
Another significant patent is the Kalman-Viterbi joint channel equalizer. This invention is applicable to a digital television receiver, where a forward filter and a backward filter perform filtering on an input signal and a predetermined signal. A Viterbi decoder corrects errors during the transmission procedure in a blind mode. The system also includes a training symbol storing block for storing training symbols. The output signal of the Viterbi decoder and symbols are provided to the backward filter based on either a blind mode or a training mode. A Kalman gain is calculated, and an error signal is generated by comparing the equalized signal, symbols, and the output signal of the Viterbi decoder. The tap coefficient is updated using the calculated error signal and the Kalman gain.
Career Highlights
Dae-Jin Kim has worked with prominent organizations such as the Electronics and Telecommunications Research Institute and Hanmi Science Co., Ltd. His experience in these institutions has allowed him to develop and refine his innovative ideas in digital television technology.
Collaborations
Throughout his career, Dae-Jin Kim has collaborated with talented individuals, including Sung-Hoon Kim and Chieteuk Ahn. These collaborations have contributed to the advancement of his research and inventions.
Conclusion
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Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile