Donald Walter Mclaughlin

US Patent:

39419894, Mar 2, 1976

Filed:

Dec 13, 1974

Appl. No.:

5/532596

Inventors:

Donald L. McLaughlin - Newtown Square PA
Ronald W. Streiber - Norristown PA

Assignee:

MOS Technology, Inc. - Norristown PA

International Classification:

G06F 738
G06F 104

US Classification:

235156

Abstract:

Continuous power and a high rate clock are supplied to a calculator while it is in an execute mode and is actually decoding and processing input information, but lower duty cycle power and lower duty cycle clock pulses are supplied during the subsequent display mode, when the only requirement is to maintain and display selected information resulting from the execute cycle, so as to reduce the power consumption rate as compared to the rate during the execute mode. If there is no new execute mode within a selected time interval, the display is turned off and the duty cycle of the power and the clock supplied to the calculator are lowered still further so as to maintain (without displaying) selected stored information but to further reduce the rate of power consumption.

US Patent:

42679150, May 19, 1981

Filed:

Oct 3, 1978

Appl. No.:

5/948170

Inventors:

Donald L. McLaughlin - Newtown Square PA
Paul J. Beshenich - Norristown PA

Assignee:

Mars, Inc. - Mc Lean VA

International Classification:

G07F 900

US Classification:

194 1N

Abstract:

A price interface for use in connecting a calculating and control unit with a multiprice vending apparatus, the price interface including a first register for storing the initial price value during a vending cycle and a second register for storing the current price value during the vending cycle.

US Patent:

42727570, Jun 9, 1981

Filed:

Apr 5, 1979

Appl. No.:

6/027377

Inventors:

Donald L. McLaughlin - Newtown Square PA
Elwood E. Barnes - Parkesburg PA

Assignee:

Mars, Incorporated - McLean VA

International Classification:

H04Q 900
G06F 700
G06M 312
G07D 900

US Classification:

340152R

Abstract:

An accountability system for a vending machine system having means for vending products and means for determining credit, the accountability system comprising a portable electronic data file module which is removable from the system, and means for collecting transaction data from the vending machine system and recording it in the portable electronic data file module. A module interlock and a power monitor are provided to ensure that accurate information is stored in the module.