Sensor subassembly and method for sending a data signal
First Claim
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1. A sensor subassembly, comprising:
- a memory unit configured to store a sensor data value from the sensor subassembly;
a transmission unit configured to communicate a data signal with sensor data value information to an external receiver at a data rate that is dependent on a clock frequency of a clock signal produced by the sensor subassembly, wherein the transmission unit communicates the data signal with sensor data value information based on a piece of trigger information in an externally received control signal; and
wherein the externally received control signal is a modulated supply voltage from the external receiver; and
wherein the transmission unit is further configured to communicate the data signal by modulating a supply current, drawn by the transmission unit, of the modulated supply voltage, that operates as the externally received control signal that is received by the transmission unit.
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Abstract
A sensor subassembly having a memory unit for storing a sensor data value from the sensor subassembly and a transmission unit for sending a data signal with information about the stored sensor data value to an external receiver at a data rate that is dependent on a clock frequency of a clock signal produced by the sensor subassembly. The transmission unit sends the data signal with the information about the stored sensor data value on the basis of a piece of trigger information in an externally received control signal.
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Citations
15 Claims
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1. A sensor subassembly, comprising:
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a memory unit configured to store a sensor data value from the sensor subassembly; a transmission unit configured to communicate a data signal with sensor data value information to an external receiver at a data rate that is dependent on a clock frequency of a clock signal produced by the sensor subassembly, wherein the transmission unit communicates the data signal with sensor data value information based on a piece of trigger information in an externally received control signal; and wherein the externally received control signal is a modulated supply voltage from the external receiver; and wherein the transmission unit is further configured to communicate the data signal by modulating a supply current, drawn by the transmission unit, of the modulated supply voltage, that operates as the externally received control signal that is received by the transmission unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for data transmission for a sensor subassembly, comprising:
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storing a sensor data value for a measured variable measured by the sensor subassembly; and communicating a data signal with sensor data value information to an external receiver at a data rate that is dependent on a clock frequency of a clock signal produced by the sensor subassembly, wherein the data signal with the sensor data value information is sent asynchronously with respect to a clock or a frequency of the control signal based on a piece of trigger information in an externally received control signal; and receiving the externally received control signal as a modulated supply voltage from the external receiver; communicating the data signal by modulating a supply current, drawn by the transmission unit, of the modulated supply voltage that operates as the externally received control signal that is received at the transmission unit.
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Specification