Method for transmitting and/or receiving audio signals
View Patent ↗A method for transmitting and/or receiving a potential aggressor audio signal includes a transmission and/or a reception of successive groups of data timed by a first clock signal within respective successive frames synchronized by a second clock signal. In the presence of a risk of interference of the potential aggressor audio signal with a different, potential victim, signal, during the transmission or reception of the potential aggressor audio signal, the frequency of the first clock signal is modified while keeping the frequency of the second clock signal unchanged.
1. A method, comprising:
receiving a group of digital data of successive groups of digital data, wherein the receiving the successive groups of digital data is timed by a synchronization clock signal having a first frequency;
serializing data bits of the group of digital data, wherein the serializing is timed by a transmission clock signal having a second frequency higher than the first frequency;
generating a processing time window for the serialized data bits of the group of digital data, wherein the processing time window begins at a first active edge of the transmission clock signal, wherein the first active edge of the transmission clock signal immediately precedes a second active edge of the transmission clock signal, wherein the second active edge of the transmission clock signal coincides in time with a first active edge of the synchronization clock signal; and
transmitting the serialized data bits within the processing time window commencing from the second active edge of the transmission clock signal.
2. The method of claim 1 , further comprising transmitting the serialized data bits of the group of digital data at the second frequency.
3. The method of claim 1 , wherein the second frequency comprises a frequency of a portion of the transmission clock signal commencing from the second active edge and within the processing time window.
4. The method of claim 1 , further comprising modifying the second frequency prior to serializing the data bits of the group of digital data based on a comparison of harmonics of the transmission clock signal to a working frequency of a transceiver.
5. The method of claim 4 , wherein the first frequency is unchanged during modification of the second frequency.
6. The method of claim 1 , further comprising:
generating the synchronization clock signal based on a first division of a main clock signal; and
generating the transmission clock signal based on a second division of the main clock signal.
7. The method of claim 1 , further comprising:
generating the transmission clock signal based on a first division of a main clock signal; and
generating the synchronization clock signal based on a second division of the transmission clock signal.
8. The method of claim 1 , wherein the first active edge and the second active edge of the transmission clock signal comprise rising edges of the transmission clock signal.
9. A device, comprising:
a system for transmitting and receiving signals, the system comprising:
a first clock generator configured to generate a synchronization clock signal having a first frequency;
a second clock generator configured to generate a transmission clock signal having a second frequency greater than the first frequency;
a receiver configured to receive a group of digital data of successive groups of digital data, wherein the receiving the successive groups of digital data is timed by the synchronization clock signal;
a transmitter coupled to the first clock generator, the second clock generator, and the receiver, the transmitter comprising:
a data serialization circuit configured to serialize data bits of the group of digital data, wherein the serializing is timed by the transmission clock signal; and
a window generation circuit configured to generate a processing time window for the serialized data bits of the group of digital data, wherein the processing time window begins at a first active edge of the transmission clock signal, wherein the first active edge of the transmission clock signal immediately precedes a second active edge of the transmission clock signal, wherein the second active edge of the transmission clock signal coincides in time with a first active edge of the synchronization clock signal; and
wherein the transmitter is configured to transmit the serialized data bits within the processing time window commencing from the second active edge of the transmission clock signal.
10. The device of claim 9 , further comprising a controller configured to modify the second frequency prior to the data serialization circuit serializing the data bits of the group of digital data based on a comparison of harmonics of the transmission clock signal to a working frequency of a transceiver.
11. The device of claim 10 , wherein the transceiver comprises a transceiver of the device.
12. The device of claim 10 , wherein the controller is configured to leave the first frequency unchanged.
13. The device of claim 9 , wherein the second frequency comprises a frequency of a portion of the transmission clock signal commencing from the second active edge and within the processing time window.
14. A method comprising:
receiving a group of N data bits in parallel;
comparing harmonics of a first transmission frequency to a frequency plan to be preserved;
changing the first transmission frequency to a second transmission frequency in response to determining that a harmonic of the first transmission frequency corresponds with a frequency of the frequency plan;
serializing the group of N data bits at the second transmission frequency; and
transmitting the group of N data bits at the second transmission frequency within a period of a synchronization clock signal using a transmission clock signal.
15. The method of claim 14 , wherein the frequency plan to be preserved comprises a working frequency of a transmitter/receiver.
16. The method of claim 14 , wherein the second transmission frequency is greater than a minimum frequency corresponding to the lowest frequency enabling transmission of the group of N data bits in the period of the synchronization clock signal.
17. The method of claim 14 , further comprising:
generating a processing time window for the group of N data bits, wherein the processing time window begins at a first active edge of the transmission clock signal transmitted at the first transmission frequency, wherein the first active edge of the transmission clock signal immediately precedes a second active edge of the transmission clock signal transmitted at the second transmission frequency, wherein the second active edge of the transmission clock signal coincides in time with an active edge of the synchronization clock signal; and
wherein transmitting the group of N data bits comprises transmitting the group of N data bits within the processing time window.
18. The method of claim 14 , wherein, while changing the first transmission frequency to the second transmission frequency, the period of the synchronization clock signal remains unchanged.
19. The method of claim 14 , further comprising:
generating the synchronization clock signal and the transmission clock signal by dividing a main clock signal.