Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2006-05-23
2006-05-23
JeanPierre, Peguy (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S156000
Reexamination Certificate
active
07049993
ABSTRACT:
An A/D converter11is provided with analog input terminals12, input terminal selection circuit13, preset registers15, preset data registers16, preset data selection circuit17, and sampling capacitor C. Input terminal selection circuit13selects one of analog input terminals12. Preset registers15are correspondingly provided for analog input terminals12. Preset data selection circuit17selects preset digital data which preset data registers16stores. Preset data stored at preset registers15corresponding to input terminals12designated by input terminal selection circuit13are converted into analog signals as pre-charge voltages. One of the preset data is selected for each analog input terminal12in response to kinds of the input voltages. It is supplied to sampling capacitor C as a pre-charge voltage for a sampling duration of a sampling period for the A/D conversion.
REFERENCES:
patent: 5619201 (1997-04-01), Imakura
patent: 5677692 (1997-10-01), Hasegawa
patent: 5877719 (1999-03-01), Matsui et al.
patent: 6094154 (2000-07-01), Lee
Jean-Pierre Peguy
Kabushiki Kaisha Toshiba
Lauture Joseph
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
LandOfFree
Analog-to-digital converter and microcomputer in which the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Analog-to-digital converter and microcomputer in which the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog-to-digital converter and microcomputer in which the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3567474