Abstract: A method and system allowing for the use of traditional buttons and switches to operate sophisticated features of smart appliances when a smartphone, a tablet, or a computer is not available is provided. Wall switches with existing wiring in a building or buttons on appliances can be used when a smartphone or other remote controlling devices are not available. A normally-closed (NC) wall switch or button can be used to control a smart appliance with only a power line connection in between the NC switch and the smart appliance without a wireless connection, or additional wires to send control signals.

Abstract: A method and system allowing for the use of traditional buttons and switches to operate sophisticated features of smart appliances when a smartphone, a tablet, or a computer is not available is provided. Wall switches with existing wiring in a building or buttons on appliances can be used when a smartphone or other remote controlling devices are not available. A normally-closed (NC) wall switch or button can be used to control a smart appliance with only a power line connection in between the NC switch and the smart appliance without a wireless connection, or additional wires to send control signals.

Abstract: A method of exchanging gas in a process of making oxygenated water is performed in a water tank. The water tank has a water inlet, a water outlet, a gas inlet, and a gas outlet. Water is received in the water tank. The water outlet and the gas inlet are closed, and the gas outlet is opened. And then supply the water tank with water through the water inlet to make a water level in the water tank go up and make gas above the water level escape through the gas outlet. Next, close the gas outlet and open the gas inlet and the water outlet once the water tank is almost filled up. Finally, close the gas inlet and the water outlet when the water level is lower than a predetermined level.

Abstract: A method of supplying oxygenated water is performed on a water tank, in which oxygenated water is received. The method lets the water tank supply a constant amount of the oxygenated water once, and then supply the water tank with water and pure oxygen to recover the dissolution ratio of oxygen of the oxygenated water in the water tank. The method may supply a constant amount of oxygenated water every time for the user to drink it up once.

Abstract: A method of supplying oxygenated water is performed on a water tank, in which oxygenated water is received. The method lets the water tank supply a constant amount of the oxygenated water once, and then supply the water tank with water and pure oxygen to recover the dissolution ratio of oxygen of the oxygenated water in the water tank. The method may supply a constant amount of oxygenated water every time for the user to drink it up once.

Abstract: A telephone line connection and disconnection circuit has a diode bridge coupled to the telephone line which converts different voltages of the telephone line into a voltage referenced to ground. A switching circuit is coupled to the diode bridge which opens and closes a conductive pathway for connecting and disconnecting a telephony product from the telephone line. A resistive element is coupled to the diode bridge and the switching circuit which allows for the conductive pathway to be normally closed. An optical isolator is coupled to the switching circuit and the resistive element for sending a control signal to the circuit when required.

Abstract: A telephone line connection and disconnection circuit has a diode bridge coupled to the telephone line which converts different voltages of the telephone line into a voltage referenced to ground. A switching circuit is coupled to the diode bridge which opens and closes a conductive pathway for connecting and disconnecting a telephony product from the telephone line. A resistive element is coupled to the diode bridge and the switching circuit which allows for the conductive pathway to be normally closed. An optical isolator is coupled to the switching circuit and the resistive element for sending a control signal to the circuit when required.

Abstract: An apparatus and method for subscriber loop powered calling identity delivery on call waiting apparatus provides battery only operation or extended battery life in a calling identity apparatus intended for off-hook and on-hook operation. The apparatus and method of using comprises a caller identification data receiver coupled to the subscriber loop for decoding caller identification tones and a CAS tone detector for detecting an alerting signal having at least one tone detector power supply input. Further comprised is a power supply circuit wherein the power supply's input is coupled to the subscriber loop for supplying power from the subscriber loop to the CAS tone detector.