Uninterrupted power supply with IR control link
View Patent ↗A Universal Power Supply (UPS) protects audio/visual (A/V) components from damage that may occur due to a sudden power loss by first, providing back up power via a battery, and then initiating the normal, that is powered, shut down of the protected component via an infrared control signal. The infrared control signal is learned from the A/V components remote control unit.
1. A UPS comprising,
a battery,
a power input port,
a power output port, operatively connected to said power input port, and to said battery when power at said power input point drops below a predetermined level,
an IR signal output port,
an IR signal input port,
means to learn a signal pattern received at the IR input port,
means to send the learned signal via the IR output port when power at said power input point drops below the predetermined level for a predetermined duration.
2. A UPS according to claim 1 , further comprising means to send the learned signal via the output port in response to a predetermined remaining level of power in said battery after the power at the input port has dropped below a predetermined level such that said battery is providing power to the power output port.
3. A UPS according to claim 1 , further comprising means to provide a variable delay time between the detection of a power failure and the sending of the learned signal via the IR signal output port.
4. A UPS according to claim 1 , further comprising means to learn a second signal pattern received at the input port.
5. A UPS according to claim 4 , further comprising a second IR signal output port for sending the second learned signal via the second IR output port when power at said power input point drops below the predetermined level for a predetermined duration.
6. A UPS device according to claim 4 , further comprising means to send the first learned signal to a first powered device and means to send the second learned output signal to a second powered device.
7. A UPS device according to claim 5 , further comprising means to vary the time of sending the first learned signal and the second learned signal.
8. A UPS according to claim 1 wherein the IR signal input port is a photo-detector.
9. A UPS according to claim 1 wherein the IR signal output port is a receptacle for providing power to a light emitting diode.
10. The method of claim 9 wherein the UPS is operative to transmit the previously entered signal at the IR output port in response to detecting a predetermined low back-up battery power level after the battery back-up operation of the UPS to power the A/V equipment.
11. A UPS according to claim 1 further comprising a light emitting diode connected to said IR signal output port via a cable.
12. A method of protecting A/V equipment from sudden loss of power or unsafe power condition, the method comprising the steps of:
a) providing a UPS device having an IR input port, an IR output port with means to train the device to transmit a previously entered signal at the IR output port in response to detecting the battery back-up operation of the UPS to power the A/V equipment,
b) providing an A/V device with an IR remote control port and a remote control device,
c) powering the A/V equipment via UPS,
d) training the UPS by exposing the output port of remote control to the IR input port of UPS,
e) directing IR beam from the UPS in the line of sight with IR input port of A/V equipment.
13. The method of claim 12 further comprising the step of training the UPS by exposing the output port of a second remote control to IR input port of UPS.
14. A UPS according to claim 13 further comprising a light emitting diode connected to said IR signal output port via a cable.
15. A UPS according to claim 13 wherein said microprocessor is operative to send the learned signal via the IR output port when power at said power input point drops below a predetermined level for a predetermined duration.
16. A UPS according to claim 13 wherein said microprocessor is further operative to transmit the previously entered signal at the IR output port in response to detecting a predetermined low back-up battery power level after the battery back-up operation of the UPS to power the A/V equipment.
17. A UPS according to claim 13 wherein said microprocessor is further operative to;
a) send the learned signal via the IR output port when power at said power input point drops below a predetermined level for a predetermined duration, and
b) transmit the previously entered signal at the IR output port in response to detecting a predetermined low back-up battery power level after the battery back-up operation of the UPS to power the A/V equipment.
18. A UPS comprising,
a) a battery,
b) a power input port,
c) a power output port, operatively connected to said power input port, and to said battery when power at said power input point drops below a predetermined level for a predetermined duration,
d) an IR signal output port,
e) an signal input port,
f) a microprocessor operative to learn a signal pattern received at the IR input port,
g) wherein the microprocessor is further operative to send the learned signal via the IR output port in response to a loss in power at the power input port.
19. A UPS according to claim 18 wherein the IR signal input port is a photo-detector.
20. A UPS according to claim 18 wherein the IR signal output port is a receptacle for providing power to a light emitting diode.