Wireless quiet enrolment
AssigneeMicrochip Technology Incorporated
InventorsRalph Mason, Andrew Burns, Chengbin Fan
Life of this patent
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Abstract
In a wireless media network a source device provides entertainment content to a sink device over a radio frequency (RF) wireless channel. The source device can go into a receive only quiet enrolment mode until activated by a sink device transmitting enrolment trigger packets or having a signal strength above a certain threshold, thereby improving coexistence with other wireless devices. The source device changes from the quiet enrolment mode to an active enrolment mode when activated by the sink device.
Claims30
A wireless media network, comprising:
- a source device for wirelessly transmitting media data packets;
- and
- at least one sink device for wirelessly receiving the media data from the source device;
- the source device comprises an active enrolment mode, a quiet enrolment mode and a data mode, wherein
- the source device transmits enrolment packets and listens for response packets from the at least one sink device when in the active enrolment mode,
- if valid response packets for active enrolment are received from the at least one sink device then the source device goes into the data mode with the at least one sink device and transmits the media data packets thereto, and
- the source device listens for a signal from the at least one sink device when in the quiet enrolment mode,
- when the signal is received then the source device goes into the active enrolment mode, and
- if the valid response packets for active enrolment are not received from the at least one sink device then the source device goes back into the quiet enrolment mode after an enrolment timeout.
A wireless device configured to connect and operate in a wireless network, wherein the wireless device is further configured to operate in a first and a second operating mode, wherein the first mode is an active mode that allows for transmission and reception of data and the second mode is a quiet mode in which the wireless device can only receive data until a predefined token has been received.
A wireless protocol for a packet based transmission network providing for a wireless device to switch between an active enrolment mode and a quiet enrolment mode, wherein the active enrolment mode allows for transmission and reception of data and in the quiet enrolment mode the wireless device can only receive data until a predefined trigger packet has been received.
A method for connecting source and sink devices together in wireless media network, comprising the steps of:
- transmitting media data from a source device, wherein the source device comprises an active enrolment mode, a quiet enrolment mode and a data mode;
- receiving the media data from the source device with a sink device;
- transmitting active enrolment packets from the source device when in the active enrolment mode;
- listening with the source device for response packets from the sink device, wherein if valid response packets for active enrolment are received from the sink device then the source device goes into the data mode with the sink device and transmits the media data thereto;
- listening when the source device is in the quiet enrolment mode for a certain signal from the sink device;
- filtering false enrolment trigger packets by using a unit identifier field;
- returning to the active enrolment mode when the certain signal is received from the sink device;
- and
- returning to the quiet enrolment mode if the valid response packets for active enrolment are not received from the sink device after an enrolment timeout.
Dependencies are inferred from the claim text.