Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Patent
1990-02-07
1991-12-03
Fuller, Benjamin R.
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
341155, H03M 160
Patent
active
050703331
ABSTRACT:
A frequency-to-digital converter is constructed as an integrated device in which the following functions are implemented: a processor bus interface (38) having data, address and control lines; at least one converter channel (10) having at least one clock generator (24), at least one input (12,14), frequency-to-digital converter means (18), a comparator (44) for comparing a digital frequency equivalent with a programmed digital word (limit value register (48)) and which is arranged to signal the exceeding of a limit value at an output (56) of the device through a programmable time-counter (50) (delay register (124)) as well as a status memory (flip-flop 52) and means (54) for the internal gating of external states, a command register (58) which is arranged to determine and initiate the conversion mode, a range register which is arranged to determine the conversion range (frequency range 22) as well as the test frequency (66) and a output frequency (67), and a status register (88) which is arranged to output information about the present state of the converter channel (10) to the processor; and a stand-alone sequencer (120) having an error function indicator and which is controlled through discrete input lines (128), for processor-independent configuration of the device from an external memory.
REFERENCES:
patent: 4107600 (1978-08-01), McMannis
patent: 4123704 (1978-10-01), Johnson
patent: 4128892 (1978-12-01), Vasa
patent: 4192130 (1980-03-01), Takeuchi
patent: 4251869 (1981-02-01), Shaffer
patent: 4330746 (1982-05-01), Stulting et al.
patent: 4354239 (1982-10-01), Kanegae
patent: 4521763 (1985-06-01), Murao et al.
patent: 4538235 (1985-08-01), Henning
patent: 4558301 (1985-12-01), Trofimenkoff et al.
McMillan, John Eric: "Design Notes in J-Phys E." Sci. Instrum. 20 (1987), pp. 1421-1422.
Paper entitled: "Unterrichtsblater der Deutschen Bundepost".
Fuller Benjamin R.
Gibson Randy W.
LandOfFree
Frequency-to-digital converter using a combined counted and time does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency-to-digital converter using a combined counted and time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency-to-digital converter using a combined counted and time will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1698870