Receiving circuit for receiving message signals
View Patent ↗The invention relates to a receiving circuit for receiving message signals, having a sampler for converting the message signal into a sampled signal, an analyzing unit for decoding the sampled signal and checking it for errors, and a control unit for controlling the sampling method as a function of the error-check on the sampled signal.
1. A receiving circuit for receiving a message signal, comprising:
a sampling unit that is configured to convert the message signal into a sampled signal,
an analyzing unit that is configured to decode the sampled signal and detect errors, and
a control unit that is configured to control a sampling method in the sampling unit as a function of the errors detected,
wherein provision is made in the sampling unit for sampling in accordance with a fixed sampling pattern as a first sampling method and for sampling with bitwise resynchronization as a second sampling method.
2. The receiving circuit of claim 1 , wherein the analyzing unit includes:
a decoding unit that is configured to detect errors in a code used to encode the message signal, and
a detecting unit that is configured to detect errors at a message level.
3. The receiving circuit of claim 1 , wherein the coded message signal is an edge-coded signal.
4. The receiving circuit of claim 1 , wherein the edge-coded signal is a Xerxes-coded signal.
5. The receiving circuit of claim 1 , wherein the sampling unit comprises an analog-to-digital converter.
6. The receiving circuit of claim 2 , wherein the sampling unit comprises a threshold discriminator.
7. The receiving circuit of claim 1 , wherein the control unit is configured to select a different sampling method to take place only after a number of error indications, which number can be preset.
8. A receiving circuit for receiving a message signal, comprising:
a sampling unit that is configured to convert the message signal into a sampled signal,
an analyzing unit that is configured to decode the sampled signal and detect errors, and
a control unit that is configured to control a sampling method in the sampling unit as a function of the errors detected,
wherein the message signal is an edge-coded signal corresponding to a Xerxes-coded signal.
9. The receiving circuit of claim 8 , wherein the analyzing unit includes:
a decoding unit that is configured to detect errors in a code used to encode the message signal, and
a detecting unit that is configured to detect errors at a message level.
10. The receiving circuit of claim 8 , wherein the control unit is configured to select a different sampling method to take place only after a number of error indications, which number can be preset.
11. The receiving circuit of claim 8 , wherein the sampling unit comprises an analog-to-digital converter.
12. The receiving circuit of claim 8 , wherein the sampling unit comprises a threshold discriminator.
13. A method comprising:
sampling a message signal using a first sampling method to form a sampled signal,
decoding the sampled signal to form a decoded signal,
detecting errors in the decoded signal, and
selecting between the first sampling method and a second sampling method used for subsequent sampling as a function of the errors detected,
wherein the first sampling method includes sampling in accordance with a fixed sampling pattern, and the second sampling method includes sampling with bitwise resynchronization.
14. The method of claim 13 , wherein selecting between the first and second sampling method is based on sequences of errors detected.
15. The method of claim 13 , wherein sampling the message signal includes performing an analog-to-digital conversion.
16. The method of claim 13 , wherein sampling the message signal includes threshold discrimination.
17. The method of claim 13 , wherein when the second sampling method including sampling with bitwise resynchronization is currently used to sample the message signal and a plurality of errors are detected, then the first sampling method including sampling in accordance with a fixed sampling pattern is selected and subsequently used to sample the message signal.
18. The method of claim 13 , wherein the coded message signal is an edge-coded signal.
19. The method of claim 18 , wherein the edge-coded signal is a Xerxes-coded signal.