Wire-free headset, portable media player
There are proposed wireless headphones which have at least one electroacoustic transducer for the reproduction of audio signals, a receiver for receiving wirelessly transmitted audio data, an intermediate memory for putting the received audio data into intermediate storage, an audio decoding unit and a control unit. The audio data wirelessly received by the receiver are firstly buffered or put into intermediate storage in the intermediate memory. The control unit controls reading of the compressed audio data stored in the intermediate memory so that said data are passed to the audio decoding unit where the compressed audio data are decoded and then outputted by means of the electroacoustic transducers. Wireless transmission is effected at a higher speed than the reproduction of the stored audio signals.
1. A wireless headphone device comprising:
a portable media player including:
a transmitter for wirelessly transmitting compressed audio data;
a memory for storing compressed audio data and/or a memory reading unit for reading memory modules; and
a control unit (1) for reading the compressed audio data out of the memory or by means of the memory module reading unit, and (2) for controlling the wireless transmission of the read-out compressed audio data;
a wireless headphone comprising:
at least one electroacoustic transducer for the reproduction of audio signals;
a receiver for wirelessly receiving transmitted compressed audio data at a first speed;
an intermediate memory for putting the received compressed audio data into intermediate storage;
an audio decoding unit for decoding compressed audio data stored in the intermediate memory; and
a control unit for controlling the reproduction of the decoded audio data and for controlling reading-out of the audio data stored in the intermediate memory at a second speed;
wherein the first speed is greater than the second speed;
wherein the compressed audio data is transmitted together with control signals; and
wherein the control unit is adapted to control the reading of the compressed audio data according to the received control signals.
2. The wireless headphone device as set forth in claim 1 ;
wherein the receiver is adapted to receive the transmitted compressed audio data in bursts.
3. The wireless headphone device as set forth in claim 1 ;
wherein the transmitter is adapted to transmit compressed audio data in bursts.
4. The wireless headphone device as set forth in claim 1 ;
wherein the media player further comprises an audio decompressing unit which is adapted to decompress the transmitted compressed audio data; and
wherein before the transmission of the audio data, a further encoding of the audio data is performed which is specially adapted to a wireless transmission path.
5. The wireless headphone device as set forth in claim 2 ;
wherein the media player further comprises an audio decompressing unit which is adapted to decompress the transmitted compressed audio data; and
wherein before the transmission of the audio data, a further encoding of the audio data is performed which is specially adapted to a wireless transmission path.
6. The wireless headphone device as set forth in claim 3 ;
wherein the media player further comprises an audio decompressing unit which is adapted to decompress the transmitted compressed audio data; and
wherein before the transmission of the audio data, a further encoding of the audio data is performed which is specially adapted to a wireless transmission path.
7. A method of reproducing audio data comprising the steps:
transmitting compensated audio data to wireless headphones;
putting the transmitted compressed audio data into intermediate storage in the wireless headphones;
reading out the compressed audio data which have been put into intermediate storage, decoding the audio data which have been put into intermediate storage; and
reproducing the decoded audio data;
wherein the speed of the wireless transmission is greater than the reading-out speed required for reproduction in the wireless headphones;
wherein the compressed audio data is transmitted together with control signals; and
wherein the control unit is adapted to control the reading of the compressed audio data according to the received control signals.