Abstract: By utilizing a power frequency carrier provided by an indoor power line, multimedia data is transferred to a converter to be converted for being displayed on an output display of a television so that the multimedia data can be transferred along the indoor power line to save indoor lines.

Abstract: A fire-alarm control panel uses a transforming unit together with indoor power line for a fire alarm; and a signal for the fire alarm is transferred to another fire-alarm control panel in another place.

Abstract: A system uses power frequency carrier to control no-fuse breaker. In the system, a controller has a power frequency carrier device. And an other power frequency carrier device is connected with the no-fuse breaker. The two power frequency carrier devices are connected through an indoor power line. The power frequency carrier is sent along the indoor power line so that the controller can remotely control the no-fuse breaker.

Abstract: More than one high-pressure facility is controlled. A first power frequency carrier unit of the high-pressure facility is connected with a second power frequency carrier unit of a monitoring device through the indoor power unit. Thus, the high-pressure facility can be monitored and controlled by the monitoring device remotely.

Abstract: The present invention receives a voice signal from an input device; then the voice signal is processed through an amplifier; and, then, the voice signal is transmitted along an indoor electrical power line with power frequency carrier to be heard by using speakers.

Abstract: A smoke detector simultaneously processes signals from a detector and signals from an image capture unit through using a power frequency carrier device. Thus, an early alarm can be made by the detector. Nevertheless, the detector can be easily installed at any p lace without a complex wiring.

Abstract: A nitrogen cabinet is disclosed to include at least one cabinet body having a door and a nitrogen inlet connected to a nitrogen supplier, multiple shelves mounted inside the cabinet body and defining multiple storage spaces, multiple containers mounted in storage spaces, each container having at least one gas charging port and an identification device, and multiple gas-charging units mounted inside the cabinet body and respectively connected to the nitrogen inlet for charging the containers with nitrogen. Thus, the nitrogen cabinet combines the functions of storage, charging, management, identification, and tracing of the containers, thereby lowering the chance of oxidation or contamination of storage items in the containers and effectively controlling real-time inventory data to improve product yield rate.

Abstract: The present invention provides an apparatus for air conditioning, where components of the apparatus are easily installed and communicate with each other easily by using power frequency carrier for better performance.

Abstract: The present invention provides a control device to automatically switch on or off a lamp by using a power frequency carrier transmitted in a power line.

Abstract: The present invention provides a telephone capable of a communication through power line.

Abstract: The present invention integrates electronical devices for switching any of the devices on or off as one wish easily through an indoor power circuit by using a programmable logic controller.

Abstract: By utilizing a power frequency carrier provided by an indoor power line, multimedia data is transferred to a converter to be converted for being displayed on an output display of a television so that the multimedia data can be transferred along the indoor power line to save indoor lines.

Abstract: A fire-alarm control panel uses a transforming unit together with indoor power line for a fire alarm; and a signal for the fire alarm is transferred to another fire-alarm control panel in another place.

Abstract: A control device obtains water level information and transfers the information to a control room through an indoor power unit coordinated with a unit for collecting the water level information and a unit for adding power frequency carrier carrying the water level information.

Abstract: The present invention transfers signals over a power line, where power signals run over the power line are modulated into network signals in a power supplier of a computer to be inputted into the computer; and, conversely, network signals from the computer are modulated into power signals in the power supplier to be transmitted over the power line.

Abstract: The present invention receives and transmits signal data modulated by a power carrier module through an indoor power line so that a bi-directional transmission of the signal data using the indoor power line is achieve

Abstract: The present invention provides a solar cell that absorbs a light source within a spectrum range from ultraviolet to far infrared with two surfaces by an absorption layer made of a semiconductor.

Abstract: A tong with a shaft is used for loading or unloading a device on high by the clipping sections of the body of the tong.