Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Patent
1994-06-03
1996-09-17
Gaffin, Jeffrey A.
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
341172, 341141, H03M 136, H03M 114
Patent
active
055572740
ABSTRACT:
The present invention provides an AD converter which operates at high speed with low power consumption and a magnetic recording/regenerating apparatus using the same. The magnetic recording/regenerating apparatus has a current controller for switching the operating current of the comparator of the AD converter and an ADC controller for receiving an instruction of the conversion speed corresponding to the regenerating frequency. When the current controller receives an instruction for decreasing the conversion speed, it puts an operation state of the AD converter into a low power consumption state.
REFERENCES:
patent: 4353057 (1982-10-01), Bernet
patent: 4999631 (1991-03-01), Sugimoto
Hirooka Tsuguyoshi
Horita Ryutaro
Miyazawa Shoichi
Takashi Terumi
Uragami Akira
Gaffin Jeffrey A.
Hitachi , Ltd.
Jean-Pierre Peguy
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