Balance and a method for operating a balance
First Claim
1. Scale with a weighing cell, which can generate weight signals representing the weight of a load each time something is weighed, and with a signal processing system which receives the weight signals and generates:
- weight data on the basis of the weight signals, information determined on the basis of the weight data and/or weighing data containing identification data designating the weighing operation or group of associated weighing operations in question, wherein the signal processing system has an encryption unit, by means of which encryption data can be generated on the basis of at least some of the weighing data, and in that the signal processing system can transmit a data record containing the portion of the weighing data used to generate the encryption data together with the encryption data, wherein the signal processing system is designed to receive with weighing data and the associated encryption data from an additional program and/or another scale.
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Accused Products
Abstract
In a scale with a weighing cell, which can generate weight signals representing the weight of a load each time something is weighed, and with a signal processing system which receives the weight signals and generates:
weight data on the basis of the weight signals,
information determined on the basis of the weight data such as purchase prices, and/or
weighing data containing identification data designating the weighing operation or group of associated weighing operations in question,
an elaboration is proposed, according to which the signal processing system has an encryption unit, which can generate encryption data on the basis of at least some of the weighing data, where the signal processing system can transmit a data record containing at least the portion of the weighing data used to generate the encryption data together with the encryption data.
29 Citations
26 Claims
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1. Scale with a weighing cell, which can generate weight signals representing the weight of a load each time something is weighed, and with a signal processing system which receives the weight signals and generates:
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weight data on the basis of the weight signals, information determined on the basis of the weight data and/or weighing data containing identification data designating the weighing operation or group of associated weighing operations in question, wherein the signal processing system has an encryption unit, by means of which encryption data can be generated on the basis of at least some of the weighing data, and in that the signal processing system can transmit a data record containing the portion of the weighing data used to generate the encryption data together with the encryption data, wherein the signal processing system is designed to receive with weighing data and the associated encryption data from an additional program and/or another scale. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
weight data on the basis of the weight signals, information determined on the basis of the weight data and/or weighing data containing identification data designating the weighing operation or group of associated weighing operations in question, and with a display unit, which can be driven by the signal processing system visually to display at least some of the weighing data, characterized in that the signal processing system has a monitoring unit which can monitor the visual display of the weighing data.
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7. Scale according to claim 6, wherein the signal processing system has an activation unit, which activates the monitoring unit as soon as the additional checking routine finds that the signal processing unit has been released for transmitting weight data.
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8. Scale according to claim 1, wherein an input unit for entering identification data and/or for entering the data required for processing the weight data and/or for entering additional data.
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9. Method for operating a scale according to claim 8, in which weight signals representing the weight of a load are generated each time an item is weighed, these signals then being sent to a signal processing system, which can generate weight data, information derived from the weight data, and/or weighing data comprising identification data, characterized in that at least some of the weighing data is encrypted and transmitted in the form of a data record together with the encryption data thus obtained and/or stored in a memory unit.
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10. Method, especially according to claim 9, in which weight signals representing the weight of a load are generated each time an item is weighed, these signals then being sent to a signal processing system, which can generate weight data, information derived from the weight data, and/or weighing data comprising identification data, and a display unit is driven to generate a visual display of at least some of the weighing data, wherein the visual display of the weighing data is monitored.
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11. Interconnected system with at least one scale according to claim 1 and at least one additional machine, preferably a sales device, especially a scale, and a data transmission unit which can be used to transmit data records between these machines.
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12. Interconnected system according to claim 11, wherein the data transmission unit comprises a network selected from the group consisting of a LAN, an intranet, or the Internet.
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13. Interconnected system according to claim 11, wherein the data transmission unit has at least one transmitter and at least one receiver for the wireless transmission of the data records.
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14. Method for operating an interconnected system according to claim 11, in which weighing data and data records containing encryption data generated from the weighing data are transmitted between the individual machines of the interconnected system, wherein the weighing data of the transmitted data records are encrypted, and the encryption data thus obtained are compared with the transmitted encryption data of the data records, where the transmitted data records are released for further processing only if it is found that these two sets of encryption data agree.
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15. Scale with a weighing cell, which can generate weight signals representing the weight of a load each time something is weighed, and with a signal processing system which receives the weight signals and generates:
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weight data on the basis of the weight signals, information determined on the basis of the weight data, and/or weighing data containing identification data designating the weighing operation or group of associated weighing operations in question, wherein the signal processing system has an encryption unit, by means of which encryption data can be generated on the basis of at least some of the weighing data, and in that the signal processing system can transmit a data record containing the portion of the weighing data used to generate the encryption data together with the encryption data, wherein the signal processing system has a signal processing unit, which can generate the weight data on the basis of the weight signals and machine-specific parameters, and a data processing unit separate from the signal processing unit, which data process unit receives the weight data and generates the other weighing data, wherein the data processing system can run a default program, by means of which the weight data are generated, received, and/or processed, and wherein the default program has a checking routine, which, every time this program is called up, first generates additional encryption data on the basis of the program data and/or on the basis of the parameters generated to generate the weight data and then compares these encryption data with the default checking data. - View Dependent Claims (16, 17, 18, 19, 20, 21, 25, 26)
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22. Scale with a weighing cell, which can generate weight signals representing the weight of a load each time something is weighed, and with a signal processing system which receives the weight signals and generates:
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weight data on the basis of the weight signals, information determined on the basis of the weight data, and/or weighing data containing identification data designating the weighing operation or group of associated weighing operations in question, wherein the signal processing system has an encryption unit, by means of which encryption data can be generated on the basis of at least some of the weighing data, and in that the signal processing system can transmit a data record containing the portion of the weighing data used to generate the-encryption data together with the encryption data, wherein the signal processing system has a memory unit for storing the weight data and the associated encryption data, wherein the memory unit has a plurality of default memory areas, each of which is designed for the storage of bookkeeping data and the associated encryption data, the bookkeeping data comprising the weighing data generated in the course of a bookkeeping operation comprising a plurality of weighing operations. - View Dependent Claims (23, 24)
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Specification