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US3828252A Expired / Lapsed US ⏱️ 0.0 years remaining

Meter with audible read-out

Assignee: WINTER W Ltd
•
Filing: 1972-11-28
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Granted: 1974-08-06
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Expires: 1992-11-28
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Abstract

Abstract A meter with means for audible read-out including a plurality of words to be audibly read out, these words being recorded on a magnetic medium, and electronic means to select the appropriate words, and to synchronize the read-out.

Inventors

  • 👤 H Wolff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 17:16
CPC Classifications
G; G01; G01D; G01D7/00; G01D7/12

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 244 words
A meter with means for audible read-out comprising: a. a range selection unit responsive to an input signal and operative to provide a standardized output first signal, and a second signal to decimal point positioning logic circuitry; b. a series of latch circuits, each fed with digital information representative of one digit to be read out, and each latch circuit including a gate which allows the digital information to pass through when a control pulse arrives at the latch; c. a decimal point positioning logic circuit fed with said second signal from the range selection unit and connected to said latches to process the digital information therefrom; d. a programmable shift register connected to the decimal point positioning logic circuit to receive the processed digital information therefrom; e. a series of gate circuits connected to the programmable shift register; f. a decoder circuit connected to the outputs of said gates to convert Binary Coded Decimal information into decimal; g. a series of audio-frequency (A.F.) gates connected to said decoder circuit and also to a magnetic pick-up head to select recordings recorded on a magnetic medium; h. an A.F. amplifier stage connected to said A.F. gates to drive a loudspeaker; i. a photo-electric device connected into a monostable circuit to sense the position of the magnetic medium and operative to produce a pulse which is fed To the programmable shift register to indicate that the magnetic medium is in a ''ready to read out'' position.
Claim 2
Dependent Claim 244 words
A meter with means for audible read-out comprising: a. a range selection unit responsive to an input signal and operative to provide a standardized output first signal, and a second signal to decimal point positioning logic circuitry; b. a series of latch circuits, each fed with digital information representative of one digit to be read out, and each latch circuit including a gate which allows the digital information to pass through when a control pulse arrives at the latch; c. a decimal point positioning logic circuit fed with said second signal from the range selection unit and connected to said latches to process the digital information therefrom; d. a programmable shift register connected to the decimal point positioning logic circuit to receive the processed digital information therefrom; e. a series of gate circuits connected to the programmable shift register; f. a decoder circuit connected to the outputs of said gates to convert Binary Coded Decimal information into decimal; g. a series of audio-frequency (A.F.) gates connected to said decoder circuit and also to a magnetic pick-up head to select recordings recorded on a magnetic medium; h. an A.F. amplifier stage connected to said A.F. gates to drive a loudspeaker; i. a photo-electric device connected into a monostable circuit to sense the position of the magnetic medium and operative to produce a pulse which is fed To the programmable shift register to indicate that the magnetic medium is in a ''ready to read out'' position.
Claim 3
Dependent Claim 68 words
A meter according to claim 1, further comprising:- a read-out initiation switch connected to a time base, this time base being constructed to emit pulses on initiation; an A.F. unmuting gate circuit connected to the time base to receive one such pulse; and a reset and set bistable circuit also connected to the time base to receive another such pulse and further connected to the programmable shift register.
Claim 4
Dependent Claim 104 words
A meter according to claim 1, further including an analogue to digital converter connected to the range selection unit and operative to provide digital information corresponding to the standard output signal from the range selection unit, wherein the analogue to digital converter includes means for generating a first signal which increases linearly from zero to a maximum, this first signal being compared with the signal to be measured and the time interval during which the said first signal rises from zero to equality with the signal to be measured; a circuit for generating pulses during said time interval and means for counting these pulses.
Claim 5
Dependent Claim 30 words
A meter as claimed in claim 1, in which the recording consist of a plurality of words, each word being recorded on a separate track of a magnetic recording medium.
Claim 6
Dependent Claim 28 words
A meter as claimed in claim 4, in which synchronization of the read-out is accomplished with the aid of an index pulse also recorded on the magnetic medium.

References Cited (Backward Citations)

US3081431A Cited
US3163819A Cited
US3727214A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-08-05 1978-02-04 1978-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-05 1982-02-04 1982-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-05 1986-02-04 1986-08-06 $7700.00 Window Closed / Lapsed

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