U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and system for controlling a multi-segment indicator to furnish an analogue display indicating only the relationship of the measured value to a desired value or range of values

Patent 4200896 Issued on April 29, 1980. Estimated Expiration Date: Icon_subject August 21, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3626367

3653015

3788410

3868673

3914758

Display of mathematical equations
Patent #: 4040048
Issued on: 08/02/1977
Inventor: Lien

Computing weighing scale Patent #: 4055753
Issued on: 10/25/1977
Inventor: Rogers ,   et al.

Inventor

Assignee

Application

No. 05/935368 filed on 08/21/1978

US Classes:

345/55, Display elements arranged in matrix (e.g., rows and columns)177/177, ILLUMINATED345/34Seven segment display

Examiners

Primary: Gruber, Felix D.
Assistant: Chin, Gary

Attorney, Agent or Firm

International Classes

G01G 23/37 (20060101)
G01G 23/18 (20060101)

Foreign Application Priority Data

1977-08-26 CH

Abstract

The multi-segment indicator can be selectively switched to operate as a range display. For this purpose, the vertical segments are deactivated. Each digit in the multi-segment indicator has a top, bottom and middle horizontal segment. If the measured value is, respectively, less than equal to or greater than a desired value, all bottom, middle, and top segments, respectively are activated. Alternatively, all middle segments are activated if the measured value is within a desired range, the top and bottom segments being activated if the measured value is, respectively, greater than the upper limit of the range or less than the lower limit of the range. The sign of the measured, desired, and limiting values is considered before activation of the corresponding horizontal segments.

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