Process for the serial transmission of digital measurement value

Details Process for the serial transmission of digital measurement value Process for the serial transmission of digital measurement value

1995-12-11

1997-11-25

Hofsass, Jeffery

Communications: electrical

Continuously variable indicating

With calculation

34087001, 34087007, 34087018, 34082533, 375244, 375243, 375260, 341143, G08C 1906

Patent

active

056917147

ABSTRACT:
In a process for the serial transmission of measurement values which are continuously supplied by a sensor and which occur at the transmitter end in digital form, to a receiver, the measurement values are ascertained at such short time intervals that their deviation from the respectively precedingly ascertained measurement value can he represented generally by only two bits of which the one reproduces the sign and the other the value of the deviation. Of the measurement values which occur within a predeterminable period of time, only a respective one is completely transmitted as an absolute value while of the others only the respective incremental alteration values which are related to the one measurement value are transmitted. At the receiver end `virtual` measurement values corresponding to the measurement values occurring at the transmitter end are synthesised by the transmitted incremental values being added, correctly in respect of value and sign, to the completely transmitted absolute value.

REFERENCES:
patent: 3114900 (1963-12-01), Anderson
patent: 3686631 (1972-08-01), Elliott
patent: 3851302 (1974-11-01), Schmidt
patent: 4559520 (1985-12-01), Johnston
patent: 4759038 (1988-07-01), Takahashi et al.
patent: 5465270 (1995-11-01), Beauducel
Mausl R: "Modulationsverfahren zur Ubertagung von Signalen (V)", de/der Elektromeister+Deutsches Elektrohandwerk 1984, No. 21, pp. 1615-1618.

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