Circuit arrangement for the addition, storage and reproduction of electric counting pulses
First Claim
1. Circuit arrangement for the addition, storage and reproduction of electric pulses generated by a signal transmitter, preferably counting pulses generated by a motion pickup, comprising a series of storage registers of a nonvolatile, overwritable storage, a control circuit including programmed writing means which, starting with the first storage register, writes each new counting pulse into the next storage register while blocking the remaining ones until the last storage register is reached, then with the next counting pulse, increases by one the contents of said first storage register, and then with each new counting pulse the contents of the subsequent storage registers, means programmed for reading out in a cyclical manner the contents of said storage, said reading out means determining by mutual comparisons of the contents of all storage registers in said series a storage register with maximum matches, and then determining the sum (X) of written-in counting pulses (IZ) by means of the contents (ej) and the position number (j) of the storage register with maximum matches.
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Accused Products
Abstract
A circuit arrangement for adding, storing and reproducing electric counting pulses, is suggested, which preferably serves as an electronic kilometer counter of a motor vehicle with a distance transmitter (10). The circuit arrangement comprises an overwritable nonvolatile storage (16) which is divided into a series of storage registers (19) in which the counting pulses are stored by a one-unit shift code. When erroneous information occurs in any storage cell, the error of the indicated storage contents amounts to a maximum of ±1. This is achieved in that the control circuit (13), beginning with the first register (14), writes each new counting pulse into the next register (13, 12 . . . ) and, after reaching the last register (0), increases the contents of the first register and then the following respective registers by one unit with the next counting pulses. Such a circuit arrangement is to be used as a kilometer counter, operating time counter, quantity or piece counter, and the like.
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Citations
9 Claims
- 1. Circuit arrangement for the addition, storage and reproduction of electric pulses generated by a signal transmitter, preferably counting pulses generated by a motion pickup, comprising a series of storage registers of a nonvolatile, overwritable storage, a control circuit including programmed writing means which, starting with the first storage register, writes each new counting pulse into the next storage register while blocking the remaining ones until the last storage register is reached, then with the next counting pulse, increases by one the contents of said first storage register, and then with each new counting pulse the contents of the subsequent storage registers, means programmed for reading out in a cyclical manner the contents of said storage, said reading out means determining by mutual comparisons of the contents of all storage registers in said series a storage register with maximum matches, and then determining the sum (X) of written-in counting pulses (IZ) by means of the contents (ej) and the position number (j) of the storage register with maximum matches.
Specification