Circuit arrangement for receiving light signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 1999
Grant Date -
N/A
app pub date -
Oct 16, 1996
filing date -
Feb 7, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit arrangement for a light signal receiver for receiving and recognizing light signals which are transmitted in a pulsed manner and to which ambient light of an undefinable intensity is parasitically superimposed. The circuit arrangement contains a two-pole light sensor and, for each terminal pole of the light sensor, a separate current-voltage converter for direct current is provided. The current-voltage converters have identical transmission behavior. Each terminal pole of the light sensor is connected to an identical signal input of a current-voltage converter. The current-voltage converters are connected as amplifying filters and are negative feedback-connected in terms of direct current and in a frequency-dependent manner so strongly via the input at which the terminal pole of the light sensor is located that the d.c. voltage at the terminal poles of the light sensor is constant independently from the intensity of the parasitic light. The outputs of the current-voltage converters are connected in terms of alternating current to an input of a differential amplifier.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully