SYSTEM INCLUDING REPLY SIGNAL THAT AT LEAST PARTIALLY OVERLAPS REQUEST

• US 20090046773A1
• Filed: 08/14/2007
• Published: 02/19/2009
• Est. Priority Date: 08/14/2007
• Status: Active Grant

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Scherr, Wolfgang
• Granted Patent: US 8,183,982 B2
• Time in Patent Office: Days
• US Class Current: 375/238
• CPC Class Codes: H04L 25/4902 Pulse width modulation; Pulse position modulation
• CPC Class Codes: H04L 5/1484 operating bytewise
• CPC Class Codes: H04L 7/00 Arrangements for synchronising receiver with transmitter synchronisation of generators of electric oscillations or pulses H03L7/00
• CPC Class Codes: H04L 7/044 using a single bit, e.g. start stop bit
• CPC Class Codes: H04L 7/06 the synchronisation signals differing from the information signals in amplitude, polarity or frequency or length

Abstract

A system including a receiver and a transmitter. The receiver is configured to transmit a request. The transmitter is configured to transmit a reply signal that at least partially overlaps the request.

Claims

1. A system comprising:

a receiver configured to transmit a request; and

a transmitter configured to transmit a reply signal that at least partially overlaps the request.

2. The system of claim 1, wherein the transmitter is configured to transmit data in the reply signal correlated to a synchronization signal in the reply signal and the receiver is configured to recover the data based on the synchronization signal.

3. The system of claim 1, wherein the transmitter is configured to transmit a pulse width modulated reply signal.

4. The system of claim 1, wherein the receiver is configured to transmit a trigger signal in the request and the transmitter is configured to start the reply signal in response to the trigger signal.

5. The system of claim 1, wherein the receiver is configured to transmit the request via one communications path and the transmitter is configured to transmit the reply signal via the one communications path.

6. The system of claim 5, wherein the one communications path is one of a conductive line, an RF frequency, an optical wavelength, a magnetic signal, and a pressure signal.

7. The system of claim 1, wherein the receiver is configured to transmit the request via a first communications path and the transmitter is configured to transmit the reply signal via a second communications path.

8. The system of claim 1, wherein the receiver is configured to transmit transmitter identification in the request.

9. The system of claim 1, wherein the receiver is configured to transmit a data request parameter in the request.

10. The system of claim 1, wherein the receiver is configured to transmit a configurable parameter in the request.

11. The system of claim 1, wherein the receiver is configured to transmit a power down signal in the request.

12. The system of claim 1, wherein the receiver is configured to transmit a send data and remain powered-up signal in the request.

13. The system of claim 1, wherein the receiver is configured to transmit a send data and power down signal in the request.

14. The system of claim 1, wherein the receiver is configured to transmit a self-test signal in the request.

15. The system of claim 1, wherein the receiver is configured to transmit a wake-up signal in the request.

16. A system, comprising:

a receiver configured to transmit a request; and

a transmitter configured to transmit a pulse width modulated signal in response to the request, wherein the receiver is configured to receive the pulse width modulated signal.

17. The system of claim 16, wherein the transmitter is configured to transmit a time base signal in the pulse width modulated signal.

18. The system of claim 17, wherein the transmitter is configured to transmit data in the pulse width modulated signal and the receiver is configured to decode the pulse width modulated signal and recover the data based on the time base signal.

19. The system of claim 17, wherein the time base signal overlaps the request.

20. The system of claim 16, wherein the pulse width modulated signal overlaps the request.

21. A system comprising:

means for transmitting a request; and

means for transmitting a synchronization signal that overlaps the request in time and is in response to the request.

22. The system of claim 21, wherein:

the means for transmitting a synchronization signal transmits data correlated to the synchronization signal; and

the means for transmitting a request recovers the data based on the synchronization signal.

23. The system of claim 21, wherein:

the means for transmitting the request transmits the request via one communications path; and

the means for transmitting the synchronization signal transmits the synchronization signal via the one communications path.

24. The system of claim 21, wherein:

the means for transmitting the request transmits the request via a first communications path; and

the means for transmitting the synchronization signal transmits the synchronization signal via a second communications path.

25. A method of communicating in a system, comprising:

transmitting a request;

transmitting a reply signal; and

overlapping the reply signal and the request.

26. The method of claim 25, comprising:

transmitting data in the reply signal that correlates to a synchronization signal in the reply signal; and

recovering the data based on the synchronization signal.

27. The method of claim 25, wherein:

transmitting the request comprises transmitting a trigger signal in the request; and

transmitting the reply signal comprises starting the reply signal in response to the trigger signal.

28. The method of claim 25, wherein transmitting the reply signal comprises transmitting a pulse width modulated reply signal.

29. A method of communicating comprising:

transmitting a request;

transmitting a pulse width modulated signal in response to the request;

overlapping the pulse width modulated signal and the request; and

receiving the pulse width modulated signal.

30. The method of claim 29, comprising:

transmitting a time base signal in the pulse width modulated signal.

31. The method of claim 30, comprising:

transmitting data in the pulse width modulated signal; and

recovering the data from the pulse width modulated signal based on the time base signal.

32. The method of claim 30, wherein transmitting a time base signal comprises overlapping the time base signal and the request.