Boots – shoes – and leggings
Patent
1979-07-26
1981-09-08
Krass, Errol A.
Boots, shoes, and leggings
165 14, 236 91D, G05D 2300
Patent
active
042888530
ABSTRACT:
A digital temperature control system for controlling the temperature of a space, including a thermal sensing element for supplying an analog signal proportional to temperature, an analog-to-digital converter for converting analog signals supplied by said thermal sensing element into digital signals, a plurality of switches for setting a desired temperature setting, a bit pattern-to-digital converter for converting the switch combinations into sets of digital signals, and arithmetically subtracting one least significant bit from the digital number represented by the sets of digital signals, and a digital comparator for comparing the outputs from the analog-to-digital converter with the outputs from the bit pattern-to-digital converter and for transmitting a control signal only in case the digital output from the analog-to-digital converter is greater than the digital output from the bit pattern-to-digital converter, wherein the bit pattern-to-digital converter functions as a subtractor in response to the control signal from the digital comparator, and transmits a subtracted digital signal to the digital comparator.
REFERENCES:
patent: 3280312 (1966-10-01), Sandelien
patent: 3692986 (1972-09-01), Nienstaedt et al.
patent: 4040565 (1977-08-01), Christiansen
patent: 4071745 (1978-01-01), Hall
patent: 4089462 (1978-05-01), Bradford
patent: 4108375 (1978-08-01), Keeney
The TTL Data Book for Design Engineers, pp. 7-53 to 7-58; The Engineering Staff of Texas Instruments, Inc.; 1976.
Krass Errol A.
Tokyo Shibaura Denki Kabushiki Kaisha
LandOfFree
Digital temperature control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital temperature control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital temperature control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1195745