is a Japanese electrical engineer, who played a significant role in the digital audio revolution. He received a degree in electrical engineering from the Tokyo Institute of Technology in 1964, and a PhD from

Tohoku University is a public research university in Sendai, Miyagi, Japan. It is colloquially referred to as or . Established in 1907 as the third of the Imperial Universities, after the University of Tokyo and Kyoto University, it initially focused on sc ...

in 1972. He joined

Sony is a Japanese multinational conglomerate (company), conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group encompasses various businesses, including Sony Corporation (electronics), Sony Semiconductor Solutions (i ...

Japan in 1964 and started the first digital audio project within Sony. He was the driving force behind the PCM adaptor, and was a prominent member of the Sony/Philips taskforce responsible for the design of the

Compact Disc The compact disc (CD) is a Digital media, digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs the Compact Disc Digital Audio (CD-DA) standard and was capable of hol ...

. He created, among others, the CIRC error correction system. He, with Kees Immink, refutes the myth that the

's playing time was determined by

Beethoven Ludwig van Beethoven (baptised 17 December 177026 March 1827) was a German composer and pianist. He is one of the most revered figures in the history of Western music; his works rank among the most performed of the classical music repertoire ...

's Ninth Symphony. He was the lead engineer of the

DASH The dash is a punctuation mark consisting of a long horizontal line. It is similar in appearance to the hyphen but is longer and sometimes higher from the baseline. The most common versions are the endash , generally longer than the hyphen ...

multi-track digital audio tape recorder. In the 1990s, he headed Sony's Digital Creatures Laboratory, where he was responsible for the

Aibo AIBO (stylized as aibo, abbreviated as Artificial Intelligence RoBOt, homonymous with , "pal" or "partner" in Japanese) is a series of robotic dogs designed and manufactured by Sony. Sony announced a prototype Aibo in mid-1998, and the first co ...

, Sony's robotic dog. In 2003, Doi created the Qrio, a running humanoid robot.

Awards and honors

*Fellowship,

Audio Engineering Society The Audio Engineering Society (AES) is a professional body for engineers, scientists, other individuals with an interest or involvement in the professional audio industry. The membership largely comprises engineers developing devices or product ...

* Eduard Rhein Prize, 1981 *Silver Medal,

AES Awards winners
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References

External links

Toshitada Doi, Machine learning luminary - and AIBO's first masterFour Qrio’s perform various dance numbers
{{DEFAULTSORT:Doi, Toshitada Japanese electrical engineers Japanese inventors Living people 1943 births Tokyo Institute of Technology alumni Tohoku University alumni