1. A remote control system with a wireless earphone function, the system comprising a host and a remote control, the host comprising an a first Microprogrammable Control Unit (MCU), a first audio signal output module, and an audio playing unit for playing sounds, wherein:
the host further comprises:
a second audio signal output module for outputting audio signals;
an audio signal transmitter for transmitting the audio signals to the remote control; and
a first switch connected between the first MCU and the first audio signal output module for controlling the first audio signal output module, and a second switch connected between the first MCU and the second audio signal output module for controlling the second audio signal output module; and
the remote control comprises:
an earphone audio unit comprising a receiver for receiving the audio signals from the host, an audio signal outlet for connecting with an earphone, and an earphone detection module for detecting whether an earphone is connected with the audio signal outlet;
a second MCU for generating an instruction for switching on the second switch if the earphone detection module detects that the earphone is connected with the audio signal outlet; and
a transmitter for transmitting a first signal corresponding to the instruction for switching on the second switch to the host; and
when the host receives the first signal, the host switches on the second switch.
2. The system described in claim 1, wherein the first MCU generates an instruction for switching off the second switch if the earphone detection module detects that the earphone is not connected with the audio signal outlet, the remote control transmits a signal corresponding to the instruction to the host, and the host receives the signal and switches off the second switch according to the signal.
3. The system described in claim 1, wherein the remote control further comprises a key module including a plurality of control keys for user operations, the control keys including a key for controlling the first switch.
4. A remote control method with a wireless earphone function, the method utilizing a host for playing video signals and audio signals and a remote control, the host comprising an audio playing unit, the method comprising the steps of:
the remote control receiving a connectivity signal from an audio signal outlet thereof, and determining whether the connectivity signal indicates that an earphone is connected with the audio signal outlet;
the remote control transmitting an instruction for switching on a switch of the host to the host if the signal indicates that an earphone is connected with the audio signal outlet;
the host switching on the switch according to the instruction;
the host transmitting audio signals to the remote control;
the remote control receiving the audio signals; and
the remote control outputting the audio signals to the earphone via the audio signal outlet.
5. The method described in claim 4, further comprising the steps of:
the remote control generating an instruction for switching off the switch if the connectivity signal indicates that the earphone is not connected with the audio signal outlet;
the remote control transmitting the instruction to the host; and
the host switching off the switch according to the instruction.
6. The method described in claim 5, wherein the host further outputs the audio signals to the audio playing unit.
7. The method described in claim 4, further comprising the steps of:
the remote control generating an instruction for switching off another switch of the host when the remote control receives an operation for controlling the other switch in an initial status;
the remote control transmitting the instruction to the host; and
the host switching off the other switch according to the instruction.
8. The method described in claim 7, further comprising the steps of:
the remote control generating an instruction for switching on the other switch when the remote control receives an operation for controlling the other switch again;
the remote control transmitting the instruction to the host; and
the host switching on the other switch according to the instruction.
9. A remote control system with a wireless earphone function, the system comprising a host and a remote control, the host comprising an audio playing unit, wherein:
the host further comprises:
an audio signal transmitting unit for transmitting audio signals to the remote control;
a first switch connected with the audio signal playing unit for controlling the audio signal playing unit; and
a second switch connected with the audio signal transmitting unit for controlling the audio signal transmitting unit; and
the remote control comprises:
an earphone audio unit comprising a receiver for receiving the audio signals from the host; and
an audio signal outlet for connecting with an earphone for outputting the audio signals; and
when the earphone is connected with the audio signal outlet, the remote control generates an instruction for switching on the second switch, and transmits a signal corresponding to the instruction to the host; and
when the host receives the signal, the host switches on the second switch according to the signal.
10. The system described in claim 9, wherein when the earphone is not connected with the audio signal outlet, the remote control generates an instruction for switching off the second switch, and transmits a signal corresponding to the instruction to the host, and the host receives the signal and switches off the second switch according to the signal.
11. The system described in claim 9, wherein the remote control further comprising a key module including a plurality of control keys for user operations, the control keys including a key for controlling the first switch.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A wireless communication apparatus comprising:
a transmitter that transmits a first frame and a second frame with multiplexing; and
a receiver that receives a third frame sent in response to the first frame and a forth frame sent in response to the second frame,
wherein a first receipt completion timing at which the third frame is fully received by the receiver and a second receipt completion timing at which the forth frame is fully received by the receiver are synchronized by controlling at least one of first content of the first frame, a first transmission method by which the first frame is sent, second content of the second frame and a second transmission method by which the second frame is sent.
2. The apparatus of claim 1, wherein a difference between a length of the third frame and a length of the forth frame varies based on at least one of the first content, the first transmission method, the second content and a second transmission method.
3. The apparatus of claim 2, wherein the difference includes zero.
4. The apparatus of claim 1, wherein the first transmission method is a transmission rate of the first frame and the second transmission method is a transmission rate of the second frame.
5. The apparatus of claim 1, wherein the first content is information to decide a size of the third frame and the second content is information to decide a size of the forth frame.
6. The apparatus of claim 1, wherein the first content is an Ack policy for the third frame and the second content is an Ack policy for the fourth frame.
7. The apparatus of claim 1 further comprising:
at least two antennas for transmitting and receiving a radio wave.
8. The apparatus of claim 1, wherein the apparatus complies with IEEE802.11 standard.
9. A wireless communication apparatus comprising:
a transmitter that transmits a first frame and a second frame with notification information under a multiplexing scheme, the notification information for deciding a length of a third frame and a length of a forth frame, the third frame sent in response to the first frame, the forth frame sent in response to the second frame; and
a receiver that receives the third frame and the forth frame,
wherein a first receipt completion timing at which the third frame is fully received and a second receipt completion timing at which the forth frame is fully received are synchronized.
10. The apparatus of claim 9, wherein a difference between a length of the third frame and a length of the forth frame varies based on the notification information.
11. The apparatus of claim 10, wherein the difference includes zero.
12. The apparatus of claim 9 further comprising:
at least two antennas for transmitting and receiving a radio wave.
13. The apparatus of claim 9, wherein the apparatus complies with IEEE802.11 standard.
14. A wireless communication method of a wireless communication apparatus comprising:
transmitting a first frame and a second frame with notification information under a multiplexing scheme, the notification information for deciding a length of a third frame and a length of a forth frame, the third frame sent in response to the first frame, the forth frame sent in response to the second frame;
receiving the third frame and the forth frame;
wherein a first receipt completion timing at which the third frame is fully received and a second receipt completion timing at which the forth frame, is fully received are synchronized.
15. The method of claim 14, wherein a difference between a length of the third frame and a length of the forth frame varies based on the notification information.
16. The method of claim 15, wherein the difference includes zero.
17. The method of claim 14, wherein the apparatus complies with IEEE802.11 standard.