This inventor holds 2 USPTO granted patents. Top assignees: Agilent Technologies, Inc., Sanyo Electric Co., Ltd.. Active years: 2005-2007.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2005-2007
Title: Ryoji Sakiyama: Innovator in Digital Signal Processing
Introduction
Ryoji Sakiyama is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of digital signal processing, holding 2 patents that showcase his innovative approach to technology.
Latest Patents
One of his latest patents is the "Multibit ΔΣ Modulation DA Converter." This invention features a DA converter that includes a high-pass filter designed to output a multibit digital signal. The filter attenuates signals with a frequency below a predetermined threshold, while allowing signals at or above the threshold to pass without attenuation. Additionally, the converter incorporates a ΔΣ modulator, a dynamic element matching circuit, and multiple internal DA converters that work together to convert the output signals into an analog format.
Another significant patent is the "Narrow-Band Amplifier and Impedance-Measuring Apparatus." This apparatus utilizes an automatic balanced bridge equipped with four numerically controlled oscillators. These oscillators provide sine-wave and cosine-wave signals to the quadrature detector and vector modulator within the narrow-band amplifier. The frequency and phase of the output signals can be updated through external numeric control, ensuring precise synchronization in the impedance measuring process.
Career Highlights
Throughout his career, Ryoji Sakiyama has worked with prominent companies such as Agilent Technologies, Inc. and Sanyo Electric Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced technologies in signal processing.
Collaborations
Ryoji has collaborated with various professionals in his field, including Kazuhiro Kimura. Their joint efforts have furthered advancements in digital signal processing and related technologies.
Conclusion
Ryoji Sakiyama's contributions to digital signal processing through his innovative patents and career experiences highlight his role as a significant inventor in the technology sector. His work continues to influence advancements in the field, showcasing the importance of innovation in engineering.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile