Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Hidenori Okuni"'
Autor:
Hisaaki Katagiri, Hirotomo Ishii, Kentaro Yoshioka, Hiroshi Kubota, Ta Tuan Thanh, Yoshinari Ojima, Hidenori Okuni, Yutaka Ota, Tomohiko Sugimoto, Katsuyuki Kimura, Akihide Sai, Matsumoto Nobu, Masatoshi Hirono, Satoshi Kondo, Shinichi Ohtsuka
Publikováno v:
IEEE Journal of Solid-State Circuits. 55:2866-2877
This article presents a 40-channel high-resolution automotive LiDAR system-on-chip (SoC), which utilizes the world’s first dual-data converter (DDC). The proposed DDC consolidates the functions of ADC and TDC into a single circuitry and achieves ac
Publikováno v:
2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).
The quality of robot vision greatly affects the performance of automation systems, where occlusions stand as one of the biggest challenges. If the target is occluded from the sensor, detecting and grasping such objects become very challenging. For ex
Autor:
Masatoshi Hirono, Hidenori Okuni, Satoshi Kondo, Yutaka Ota, Yoshinari Ojima, Tomohiko Sugimoto, Hisaaki Katagiri, Shinichi Ohtsuka, Kentaro Yoshioka, Hiroshi Kubota, Katsuyuki Kimura, Hirotomo Ishii, Ta Tuan Thanh, Matsumoto Nobu, Akihide Sai
Publikováno v:
ISSCC
A safe and reliable self-driving system is a key enabling technology for a society without traffic jams or accidents; LiDAR plays an essential role for such systems. To ensure higher levels of safety and comfort, early detection of small objects (e.g
Autor:
Hidenori Okuni, Yoshinari Ojima, Akihide Sai, Kentaro Yoshioka, Hirotomo Ishii, Masatoshi Hirono, Hiroshi Kubota, Matsumoto Nobu, Yasuhiro Ishii, Satoshi Kondo, Seitaro Yagi, Sohichiroh Hosoda, Yoshikazu Nagashima, Naoya Waki, Ta Tuan Thanh, Yumi Higashi, Tomohiko Sugimoto, Tomonori Fukushima, Isao Fujisawa, Tomohiro Koizumi, Yutaka Ota, Naoyuki Kawabe, Nobuo Kano, Daisuke Kurose, K. Watanabe, Yoichiro Iwagami, Katsuyuki Kimura, Tetsuya Nakamura
Publikováno v:
IEEE Journal of Solid-State Circuits. 53:3026-3038
This paper presents a time-to-digital converter/analog-to-digital-converter (TDC/ADC) hybrid LiDAR system-on-chip (SoC) to realize reliable self-driving systems. The smart accumulation technique (SAT) is proposed to achieve both 200-m and high-pixel-
Autor:
Ta Tuan Thanh, Akihide Sai, Hidenori Okuni, Takashi Tokairin, Satoshi Kondo, Tetsuro Itakura, Masanori Furuta
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:3125-3136
This paper presents a low-power hybrid-loop receiver (RX) with high-interference tolerance for Bluetooth low energy (BLE). The hybrid-loop structure based on an all-digital phase-locked loop enables the RX to both enhance the interference tolerance a
Autor:
Kentaro Yoshioka, Yasuhiro Ishii, Naoyuki Kawabe, Hirotomo Ishii, Seitaro Yagi, Naoya Waki, K. Watanabe, Ta Tuan Thanh, Yoichiro Iwagami, Yutaka Oota, Tomohiro Sugimoto, Matsumoto Nobu, Yoshinari Ojima, Tomohiro Koizumi, Hidenori Okuni, Satoshi Kondo, Katsuyuki Kimura, Sohichiroh Hosoda, Nobuo Kano, Yumi Higashi, Akihide Sai, Daisuke Kurose, Tetsuya Nakamura, Yoshikazu Nagashima, Hiroshi Kubota, Tomonori Fukushima, Isao Fujisawa
Publikováno v:
ISSCC
Long-range and high-pixel-resolution LiDAR systems, using Time-of-Flight (ToF) information of the reflected photon from the target, are essential upon launching safe and reliable self-driving programs of Level 4 and above. 200m long-range distance me
Autor:
Tetsuro Itakura, Hidenori Okuni, Shigehito Saigusa, Akihide Sai, Masanori Furuta, Junya Matsuno, Masahiro Hosoya
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :492-499
Publikováno v:
ISSCC
Several research studies have considered replacing traditional analog PLLs with an all-digital PLL (ADPLL). In such studies, a key topic relates to the resolution and linearity of the TDC. Power-hungry techniques, such as a Vernier delay line (VDL) a
Autor:
Hidenori Okuni, Satoshi Kondo, Tetsuro Itakura, Takashi Tokairin, Masanori Furuta, Ta Tuan Thanh, Akihide Sai
Publikováno v:
ISSCC
Various Ultra-Low-Power (ULP) RX architectures [1–4] for Bluetooth™ Low Energy (BLE) have been developed for minimizing the RX power consumption. A PLL-based RX architecture [1] is very attractive to improve the energy efficiency. While the singl
Publikováno v:
IEICE Transactions on Electronics. :1539-1547
We propose two types of active directional couplers to assure high TX cancellation: an asymmetric type and a symmetric type. For attaining low receiving through loss, coupling capacitors used in conventional couplers are replaced by amplifiers in the