Selectively configurable analog signal sampler

Details Selectively configurable analog signal sampler Selectively configurable analog signal sampler

1998-02-13

2000-02-29

Ton, My-Trang Nu

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

G11C 2702

Patent

active

060313994

ABSTRACT:
A selectively configurable analog signal sampler, e.g., for use in an imaging system, for generating a differential sampled analog output signal which corresponds to a single-ended analog input signal with one or more signal characteristics including a positive signal polarity, a negative signal polarity, a return-to-reference signal waveform and a non-return-to-reference signal waveform. A switched capacitor matrix is configured, along with an operational amplifier with differential inputs and outputs, to allow all single-ended analog input signals with such signal characteristics to be sampled and converted to corresponding differential sampled analog output signals. Additionally, an accumulation mode of operation is provided in which the signal sampler accumulates N successive samples of the input signal and outputs the sum of such N samples, thereby allowing the signal sampler to operate at its rated speed while the circuit providing the input signal, e.g., an image sensor, operates at N-times such speed.

REFERENCES:
patent: 3781574 (1973-12-01), White et al.
patent: 4035629 (1977-07-01), Lampe et al.
patent: 4287441 (1981-09-01), Smith
patent: 5034633 (1991-07-01), Stekelenburg
patent: 5086344 (1992-02-01), D'Luna et al.
patent: 5144160 (1992-09-01), Lee et al.
patent: 5329312 (1994-07-01), Boisvert et al.
patent: 5349380 (1994-09-01), Stein
patent: 5434620 (1995-07-01), Higuchi et al.
patent: 5449908 (1995-09-01), Wadsworth et al.
patent: 5475427 (1995-12-01), Horowitz
patent: 5572155 (1996-11-01), Tamayama
patent: 5600696 (1997-02-01), Sauer
patent: 5644257 (1997-07-01), Kerth et al.
patent: 5680072 (1997-10-01), Vulih et al.
patent: 5689201 (1997-11-01), Temes et al.
patent: 5698999 (1997-12-01), Etoh et al.
patent: 5717457 (1998-02-01), Morimoto
patent: 5736895 (1998-04-01), Yu et al.
Jaroslav Hynecek, "Theoretical Analysis and Optimization of CDS Signal Processing Method for CCD Image Sensors", IEEE Transactions of Electron Devices, vol. 39, No. 11, Nov. 1992, pp. 2497-2507.
Robert J. Kansy, "Response of a Correlated Double Sampling Circuit to 1/f Noise", IEEE Journal of Solid-State Circuits, vol. SC-15, No. 3, Jun. 1980, pp. 373-375.
Masahiro Ohbo, Ikuo Akiyama, Takanori Tanaka, "A New Noise Suppression Method for High-Definition CCD Cameras", IEEE Transactions on Consumer Electronics, vol. 35, No. 3, Aug. 1989, pp. 368-374.
G.R. Hopkinson and D.H. Lumb, "Noise Reduction Techniques for CCD Image Sensors", Journal of Physics E. Scientific Instruments, vol. 15, No. 11, Nov. 1982, pp. 1214-1222.
Marvin H. White, Donald R. Lampe, Franklyn C. Blaha and Ingham A. Mack, "Characterization of Surface Channel CCD Image Arrays at Low Light Levels", IEEE Journal of Solid-State Circuits, vol. SC-9, No. 1, Feb. 1974, pp. 1-13.
J.M. Pimbley and G. J. Michon, "The Output Power Spectrum Produced by Correlated Double Sampling", IEEE Transactions on Circuits and Systems, vol. 38, No. 9, Sep. 1991, pp. 1086-1090.
Anthony Rizzi, "N-Delta and Differential Average Signal Processors: Detailing of Their Signal and Noise Response", IEEE Journal of Solid-State Circuits, vol. 28, No. 1, Jan. 1993, pp. 49-58.
K.A. Parulski, L.J. D'Luna and R.H. Hibbard, "A Digital Color CCD Imaging System using Custom VLSI Circuits", IEEE Transactions on Consumer Electronics, vol. 35, No. 3, Aug. 1989, pp. 382-389.
Ryuji Nishimura, et al., "A RGB-.sub..gamma. CCD Camera with a Novel Color Matrix", IEEE Transactions on Consumer Electronics, vol. 35, No. 3, Aug. 1989, pp. 375-381.
Stephen H. Lewis, H. Scott Fetterman, George F. Gross, Jr., R. Ramachandran, T.R. Viswanathan, "A 10-b 20-Msample/s Analog-to-Digital Converter", IEEE Journal of Solid-State Circuits, vol. 27, No. 3, Mar. 1992, pp. 351-358.

Affiliated with

Also associated with

Rating

Selectively configurable analog signal sampler does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selectively configurable analog signal sampler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selectively configurable analog signal sampler will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-686458