1-8. (canceled)
9. A refrigerator having a compressor, a condenser and an evaporator connected in a refrigerant circuit, with the evaporator being forced-ventilated by a fan with adjustable power, the refrigerator comprising a control unit configured to regulate the power of the fan in inverse proportion to a thermal load of the refrigerator.
10. The refrigerator according to claim 9 wherein the control unit is configured to determine time elapsed since the refrigerator was switched on and to determine on the basis of the elapsed time since the refrigerator was switched on whether a high thermal load is present or a high thermal load is not present.
11. The refrigerator according to claim 9 wherein the control unit is configured to control the fan based on the thermal load of the refrigerator only during a first period of operation of the compressor after the switching on the refrigeration device.
12. The refrigeration device according to claim 9 wherein the control unit is configured to determine whether a high thermal load is present or a high thermal load is not present based on the temperature of a storage compartment.
13. The refrigeration device according to claim 9 and further comprising an outside temperature sensor and wherein the control unit is configured determine whether a high thermal load is present or a high thermal load is not present based on the temperature detected by the outside temperature sensor.
14. The refrigerator according to claim 9 wherein the control unit is configured to estimate a temperature of the compressor and to determine whether a high thermal load is present or a high thermal load is not present based on the estimated compressor temperature.
15. The refrigeration device according to claim 9 wherein the compressor is operated intermittently and the regulated power is at least one of a power averaged over an operating phase and a part of an operating phase of the compressor.
16. The refrigerator according to claim 9 wherein the control unit is configured to regulate the power of the fan by on and off sampling of the fan when the compressor is running.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A transceiver unit comprising:
a receiver unit adapted to detect from a physical medium a first downstream handshake initiation signal and a first upstream handshake initiation signal,
a transmitter unit adapted to transmit over said physical medium a second upstream handshake initiation signal, and
a self identification module adapted to identify said transceiver unit as a central unit or as a remote unit,
characterized in that said self identification module is coupled to said receiver unit and said transmitter unit, and is further adapted to:
wait for detection of any of said first downstream handshake initiation signal and said first upstream handshake initiation signal within a first time interval,
request said transmitter unit to transmit said second upstream handshake initiation signal when none of said first downstream handshake initiation signal and said first upstream handshake initiation signal is detected within said first time interval, and wait for detection of said first downstream handshake initiation signal within a second time interval,
identify said transceiver unit as a remote unit upon detection of said first downstream handshake initiation signal within said first time interval or within said second time interval, and
identify said transceiver unit as a central unit upon detection of said first upstream handshake initiation signal within said first time interval.
2. A transceiver unit according to claim 1, characterized in that said receiver unit is further adapted to detect from said physical medium an upstream handshake confirmation signal, wherein
said transmitter unit is further adapted to transmit over said physical medium a second downstream handshake initiation signal, and
said self identification module is further adapted to:
request said transmitter unit to transmit said second downstream handshake initiation signal when none of said first downstream handshake initiation signal and said first upstream handshake initiation signal is detected within said first time interval, and wait for detection of said upstream handshake confirmation signal within a third time interval, and
identify said transceiver unit as a central unit upon detection of said upstream handshake confirmation signal within said third time interval.
3. A transceiver unit according to claim 2, characterized in that said self identification module is further adapted to request said transmitter unit to transmit said second downstream handshake initiation signal when said first downstream handshake initiation signal is not detected within said second time interval.
4. A transceiver unit according to claim 2, characterized in that said self identification module is further adapted to request said transmitter unit to transmit said second upstream handshake initiation signal when said first upstream handshake confirmation signal is not detected within said third time interval.
5. A transceiver unit according to claim 1, characterized in that said self identification module is further adapted to wait for a random or pseudo-random period of time when none of said first downstream handshake initiation signal and said first upstream handshake initiation signal is detected within said first time interval, and if said first downstream handshake initiation signal is not detected within said second time interval.
6. A transceiver unit according to claim 1, characterized in that a length of any of said first time interval or said second time interval is a random or pseudo-random number.
7. A transceiver unit according to claim 1, characterized in that said transceiver unit is a digital subscriber line transceiver unit,
and in that said first downstream handshake initiation signal is a C-TONES signal according to ITU recommendation G.994.1, said first upstream handshake initiation signal and said second upstream handshake initiation signal are R-TONES-REQ signals according to ITU recommendation G.994.1.
8. A transceiver unit according to claim 2, characterized in that said transceiver unit is a digital subscriber line transceiver unit,
and in that said first downstream handshake initiation signal and said second downstream handshake initiation signal are C-TONES signals according to ITU recommendation G.994.1, said first upstream handshake initiation signal and said second upstream handshake initiation signal are R-TONES-REQ signals according to ITU recommendation G.994.1, and said upstream handshake confirmation signal is a R-TONE1 signal according to ITU recommendation G.994.1.
9. A transceiver unit according to claim 2, characterized in that said transceiver unit is a digital subscriber line transceiver unit,
and in that said first downstream handshake initiation signal and said second downstream handshake initiation signal are C-TONES signals according to ITU recommendation G.994.1, said first upstream handshake initiation signal and said second upstream handshake initiation signal are R-TONES-REQ signals according to ITU recommendation G.994.1, and said upstream handshake confirmation signal is a R-FLAG1 signal according to ITU recommendation G.994.1.