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For the Inventor, By the Inventor

Fukushima-ken, Japan

Yukio Ohtaki

USPTO Granted Patents = 8

Average Co-Inventor Count = 1.5

ph-index = 2

Forward Citations = 38(Granted Patents)


Location History:

  • Fukushima-kan, JP (2005)
  • Fukushima-ken, JP (2005 - 2010)

Company Filing History:

goldMedal8 out of 4,048 
 
Alps Electric Co., Ltd.
 patents

Years Active: 2005-2010

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8 patents (USPTO):Explore Patents
1. 7817749 - Digital signal receiver including wideband tunable antenna device (2010-10-19),
2. 7454180 - Vehicle-mounted receiving apparatus for reducing distortion, improving reception sensitivity, and saving power (2008-11-18),
3. 7382841 - OFDM receiver for easily synchronizing base band signal (2008-06-03),
4. 6993093 - OFDM receiving apparatus with reduced bit error rate after demodulation (2006-01-31),
5. 6961394 - Diversity receiving apparatus capable of preventing reduction of C/N ratio (2005-11-01),
6. 6959175 - Receiver capable of receiving radio signals in a preferred state at all times (2005-10-25),
7. 6944243 - Diversity reception device outputting maximized C/N ratio of synthesized signal (2005-09-13),
8. 6925294 - Antenna receiver in which carrier-to-noise ratio of demodulation signal is improved (2005-08-02),

Title: Innovations of Yukio Ohtaki

Introduction

Yukio Ohtaki is a prominent inventor based in Fukushima-ken, Japan. He has made significant contributions to the field of digital signal processing and antenna technology. With a total of 8 patents to his name, Ohtaki's work has had a considerable impact on the industry.

Latest Patents

One of his latest patents is a digital signal receiver that includes a wideband tunable antenna device. This invention features a digital tuner unit that receives a digital signal in a reception channel with a predetermined bandwidth. The tuner unit is connected to an antenna device containing radiation conductors and varactor diodes. The digital reception signal output from the tuner is input to a demodulation circuit, where it undergoes demodulation. An SP level detection unit within the demodulation circuit detects levels of multiple spread pilot signals in the reception channel's bandwidth. It calculates a correction amount for the tuning voltage to minimize level differences to a predetermined value or less. This correction amount is reported to an antenna tuning control unit to adjust the tuning voltage supplied to the antenna device.

Another notable patent is a vehicle-mounted receiving apparatus designed to reduce distortion, improve reception sensitivity, and save power. In this invention, a first low-noise amplifier is connected to a first receiving processing unit through a first cable. A bypass circuit is provided in parallel to the first low-noise amplifier to bypass it when necessary. If the intensity of the broadcasting signal exceeds a predetermined value, and the C/N ratio falls between two specific thresholds, the broadcasting signal is transmitted through the first low-noise amplifier. However, if the C/N ratio is below the first threshold or above the second, the signal bypasses the amplifier and is transmitted through the bypass circuit.

Career Highlights

Yukio Ohtaki is currently employed at Alps Electric Co., Ltd., where he continues to innovate and develop advanced technologies. His work has been instrumental in enhancing the performance of digital signal receivers and related devices.

Collaborations

Ohtaki has collaborated with several talented individuals in his field, including Toru Oyama and Kouta Iijima. These collaborations have contributed to the successful development of his patented technologies.

Conclusion

Yukio Ohtaki's contributions to digital signal processing and antenna technology are noteworthy. His innovative patents

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