Wireless sound transmission system and method

摘要

A system providing sound to a user, having at least one audio signal source; a transmission unit with a digital transmitter which transmits audio signals via a wireless digital audio link as audio data packets, each packet having a start frame delimiter, audio data and a frame check sequence; at least one receiver unit having at least two digital receivers connected to a common processing unit and an antenna, and including a demodulator and a buffer, and a mechanism for stimulating the hearing of the user. Each receiver receives, verifies and buffers the audio data packets, and the processing unit reads an audio data packet from the buffer of one of the receivers. If the packet is correctly received by the receiver, the buffer of the other receivers is flushed, and if the packet has been incorrectly received, the audio data packet from the buffer of another receiver is read.

主权项

1. A system for providing sound to at least one user, comprising:
at least one audio signal source for providing audio signals; a transmission unit comprising a digital transmitter for applying a digital modulation scheme in order to transmit the audio signals from the audio signal source via a wireless digital audio link; at least one receiver unit for reception of audio signals from the transmission unit via the digital audio link, comprising at least two digital receivers, each being connected to a common processing unit and an antenna and including a demodulator and a buffer; means for stimulating hearing of the at least one user according to audio signals supplied from the processing unit; wherein the wireless link is adapted for transmitting the audio signals as audio data packets, each packet comprising a start frame delimiter (SFD), audio data and a frame check sequence (CRC), wherein each receiver is adapted for receiving, verifying and buffering each of the audio data packets, and wherein the processing unit is adapted to read an audio data packet from the buffer of one of the receivers and, if the packet has been correctly received by that receiver, to flush the buffer of the other of the at least two receivers and, if the packet has not been correctly received by that receiver, to read the audio data packet from the buffer of another one of the at least two receivers.