Method and apparatus for analog-to-digital conversion

Details Method and apparatus for analog-to-digital conversion Method and apparatus for analog-to-digital conversion

1991-02-28

1991-11-26

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Increasing converter resolution

341139, 341155, H03M 120

Patent

active

050686585

ABSTRACT:
A method for analog-to-digital conversion of a chronologically changing, analog input signal includes the steps of forming an edited signal from an input signal by subjecting the input signal to a first transfer function and amplifying the result by a defined gain factor, sampling the input signal and the edited signal and subjecting the sampled signals to analog-to-digital conversion to obtain first and second digital data respectively corresponding to the edited signal and the input signal. The number of bits in each of the first and second digital data determines the dynamic range of the analog-to-digital conversion. The first digital data, corresponding to the input signal, are multiplied by a defined factor equal to the defined gain factor. If a transgression of the dynamic range in the analog-to-digital conversion has not occurred, the final analog-to-digital conversion result is calculated making use of the second digital data corresponding to the edited signal. If the dynamic range has been transgressed, the digital data corresponding to the edited signal are not used to determine the final conversion result. An apparatus for practicing the method is also disclosed.

REFERENCES:
patent: 3790747 (1974-02-01), Campbell et al.
patent: 4129864 (1978-12-01), Carpenter et al.
patent: 4751496 (1988-06-01), Araki et al.
patent: 4851842 (1989-07-01), Iwamatsu
patent: 4914439 (1990-04-01), Nakahashi et al.
patent: 4926175 (1990-05-01), Ishizawa et al.

Affiliated with

Also associated with

Rating

Method and apparatus for analog-to-digital conversion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for analog-to-digital conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for analog-to-digital conversion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2388407