Location History:
- Kodaira, JP (1979)
- Zama, JP (2006 - 2014)
- Kanagawa, JP (1985 - 2017)
- Yokosuka, JP (1987 - 2020)
Company Filing History:
5 out of 185 
4 out of 5,290 
2 out of 522 
Years Active: 1979-2020
Title: Hiroshi Ochi: Innovator in Acoustic Communication
Introduction
Hiroshi Ochi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of acoustic communication, holding a total of 13 patents. His innovative work has paved the way for advancements in communication technologies.
Latest Patents
Ochi's latest patents include an acoustic communication method and an acoustic communication system. The acoustic communication system consists of a first and a second acoustic communication apparatus. The first apparatus transmits a first acoustic wave to the second apparatus, which then responds with a second acoustic wave. This process continues in constant cycles until the next first acoustic wave is received. Each cycle comprises a transmission period and a pause period. The first apparatus determines the optimal transmission timing for the next first acoustic wave based on the time required for the first wave's transmission and the length of the transmission period.
Another notable patent is a receiving device and method designed to efficiently compensate for the effects of Doppler shift. This device includes a Doppler estimator that estimates the Doppler-shift frequency of a received signal. A multiplier and a low-pass filter (LPF) detect the received signal based on the carrier frequency and the estimated Doppler-shift frequency. A timing corrector adjusts the timing for extracting symbols from the received signal, while a symbol extractor extracts these symbols at the corrected timing. An adaptive equalizer then estimates and determines symbols from the extracted received symbols.
Career Highlights
Throughout his career, Hiroshi Ochi has worked with notable companies such as Morinaga Milk Industry Co., Ltd. and Nippon Telegraph and Telephone Corporation. His experience in these organizations has contributed to his expertise in acoustic communication technologies.
Collaborations
Ochi has collaborated with esteemed colleagues, including Yoshitaka Tamura and Hitoshi Saito. Their joint efforts have further advanced the field of acoustic communication.
Conclusion
Hiroshi Ochi's innovative contributions to acoustic communication have established him as a key figure in the industry. His patents and collaborations reflect his commitment to advancing communication technologies.