Automatic base line drift corrector circuit

• US 3,359,410 A
• Filed: 04/23/1964
• Issued: 12/19/1967
• Est. Priority Date: 04/23/1964
• Status: Expired due to Term

• Current Assignee: Clinton D. Frisby, David W. Spence
• Original Assignee: Clinton D. Frisby, David W. Spence
• Inventors: Frisby, Clinton D., Spence, David W.
• Application Number:
  US04/361,970
• Time in Patent Office: 1,335 Days
• US Class Current: 708/822
• CPC Class Codes: G01N 30/8624 Detection of slopes or peaks; baseline correction
• CPC Class Codes: G06G 7/122 for optimisation, e.g. least square fitting, linear programming, critical path analysis, gradient method
• CPC Class Codes: H01J 49/022 Circuit arrangements, e.g. for generating deviation currents or voltages regulating electric or magnetic variables in general, e.g. current, magnetic field G05F; Components associated with high voltage supply high voltage supply per se H02M
• CPC Class Codes: H03K 5/007 Base line stabilisation thresholding H03K5/08

Claims

11. A BASE LINE DRIFT CORRECTOR CIRCUIT FOR CORRECTING THE BASE LINE VALUE OF AN ANALYTICAL SIGNAL COMPRISING:

(A) MEANS FOR FORMING A CORRECTION SIGNAL;

(B) MEANS FOR CORRECTING THE ANALYTICAL SIGNAL WITH THE THE CORRECTION SIGNAL;

AND (C) MEANS OPERATED BY THE ANALYTICAL SIGNAL FOR WITHHOLDING THE CHANGING OF THE OUTPUT OF SAID FORMING MEANS DURING OCCURRENCE OF ANALYTICAL FLUCTUATIONS IN THE ANALYTICAL SIGNAL.