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Seamless playback and switching for wireless communications devices

專利號
US11659466B2
公開日期
2023-05-23
申請人
Cypress Semiconductor Corporation(US CA San Jose)
發(fā)明人
Krishna Kishore Avadhanam; Ashish Kumar Malot; Robert Zopf
IPC分類
H04W36/30; H04W36/00
技術(shù)領(lǐng)域
sink,may,wi,fi,wireless,be,bluetooth,connection,device,discussed
地域: CA CA San Jose

摘要

Systems, methods, and devices seamlessly playback data files using one or more wireless connections. Methods include establishing a first wireless connection between a source device and a sink device, the first wireless connection using a first transmission protocol and transmitting audio data via the first wireless connection. Methods further include determining a switch should be initiated based on one or more signal quality metrics, the one or more signal quality metrics representing, at least in part, an estimate of a quality of the first wireless connection. Methods also include switching to a second wireless connection between the source device and the sink device, the second wireless connection using a second transmission protocol, and the second wireless connection using data packets encapsulated for transmission in accordance with the second transmission protocol.

說明書

More specifically, source device 401 includes signal quality detector 402 which is configured to obtain signal quality metrics from one or more sources. For example, such signal quality metrics may be received signal strength indicator (RSSI) values. Such quality metrics may be generated periodically, or on a packet-by-packet basis. It will be appreciated that any suitable signal quality metric may be retrieved and used by signal quality detector 402. In some embodiments, such values may be available and retrieved from a BT MAC layer, as will be discussed in greater detail below. Source device 401 further includes RF communication manager 404 which is configured to control profile implementation of a BT stack. Accordingly, RF communication manager 404 may be configured to handle A2DP (Advanced Audio Distribution Profile)/AVRCP (Audio/Video Remote Control Profile)/RFCOMM transfer of data. Moreover, RF communication manager 404 may also be configured to handle A2DP/AVRCP transfer of data with a Wi-Fi MAC layer, as discussed in greater detail below.

Source device 401 additionally includes protocol layer 406 which is configured to implement logical link control and adaptation protocol. Accordingly, protocol layer may be an L2CAP layer used within a Bluetooth protocol stack. Source device 401 further includes AMP manager 412 which is configured to implement Wi-F discovery and connection operations, as will be discussed in greater detail below. Source device 401 also includes BT MAC/PHY layers 408 which are configured to implement the MAC and PHY layers of a Bluetooth stack. Source device 401 further includes Wi-Fi MAC/PHY layers 410 which are configured to implement the MAC and PHY layers for the Wi-Fi transceiver.

權(quán)利要求

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