WIRELESS STREAMING OF AN AUDIO SIGNAL TO MULTIPLE AUDIO RECEIVER DEVICES

摘要

A method of streaming an audio signal from an audio transmission device to first and second audio receiver devices via a Bluetooth link using a protocol that requires an audio data packet to be retransmitted if a positive packet receipt is not received. The first audio receiver device is synchronized to the audio transmission device to enable the first audio receiver device to receive an audio signal stream from the audio transmission device, the second audio receiver device is synchronized to the audio transmission device to enable the second audio receiver device to eavesdrop the audio signal stream to the first audio receiver device. When a positive packet receipt acknowledgement is not transmitted from the first audio receiver device to the audio transmission device, the audio transmission device repeats transmission of that audio data packet irrespective of whether the packet has been correctly received by the first audio receiver device.

主权项

1. A method for streaming an audio signal from an audio transmission device (10, 110) to an arrangement comprising at least a first audio receiver device (12, 26) and a second audio receiver device (14, 112, 114, 126) via a standard Bluetooth link (16) using a protocol requiring repetition of transmission of an audio data packet (AP) in case of a missing positive packet receipt acknowledgement (PPRA), the method comprising the steps of:
synchronizing the first audio receiver device to the audio transmission device in order to enable the first audio receiver device to receive an audio signal stream from the audio transmission device, synchronizing the second audio receiver device to the audio transmission device in order to enable the second audio receiver device to eavesdrop the audio signal stream from the audio transmission device to the first audio receiver device, wherein the first audio receiver device, at least in some cases, does not transmit a positive packet receipt acknowledgement to the audio transmission device after having correctly received an audio data packet, thereby causing the audio transmission device to repeat transmission of that audio data packet irrespective of whether or not the packet has been correctly received by the first audio receiver device.