Abstract: A cable television apparatus is applied to an input coaxial cable and an output coaxial cable to transmit a cable television signal. The cable television apparatus includes an improved choke, an input side, an output side, an input capacitor and an output capacitor. The improved choke is electrically connected to the input coaxial cable, the output coaxial cable, the input side, the output side, the input capacitor and the output capacitor. The improved choke includes a conductive wire and a ferrite core. One side of the conductive wire is electrically connected to the input side and one side of the input capacitor. The other side of the conductive wire is electrically connected to the output side and one side of the output capacitor. The ferrite core covers one part of the conductive wire. Moreover, the ferrite core is a high saturation current ferrite core.

Abstract: A signal splitting device is to be installed in a CATV passive apparatus. The signal splitting device includes a circuit board that is disposed in a cover of the CATV passive apparatus, and a first connecting terminal and a second connecting terminal that are mounted to the circuit board and that are connected respectively to input and output terminals of the CATV passive apparatus. Each of the first and second connecting terminals includes a pin electrically connecting the circuit board and the corresponding one of the input and output terminals. The pin has a segment that is between the circuit board and the corresponding one of the input and output terminals and that has a length ranging from 4 to 15 mm.

Abstract: A video splitter includes a housing. The housing has a seat shell and a cover shell. A pair of main signal ports is provided in the seat shell. At least part of the main signal ports is out of contact with the seat shell. A pair of pushing rods is provided in the housing. The seat shell has an insulative element, a pair of elastic beam terminals and a conductive element. The conductive element connects with the elastic beam terminals. Each of the elastic beam terminals is separately and movably arranged between one of the main signal ports and the seat shell. The seat shell has ferrite elements. A splitter board is disposed in the cover shell. The splitter board has a pair of first terminals correspondingly connecting with second terminals in the main signal ports. Splitting signal ports electrically connecting with the splitter board are provided outside the cover shell.

Abstract: A cable television apparatus improving high frequency characteristics includes a first connector and a first choke. The first connector is electrically connected to an input coaxial cable or an output coaxial cable. The first choke is electrically connected to the first connector. The first connector includes a first signal transmission unit. The first choke is used to block a cable television signal. The first choke allows a first current flowing through the first choke. The first current is greater than or equal to 10 amperes. The first choke is directly touched the first signal transmission unit, or a connection path length between the first signal transmission unit and a pin of the first choke is less than 5 millimeters.

Abstract: A cable television system with printed-circuit-board-layout components receives a cable television signal. The cable television system includes a low pass filter apparatus. The low pass filter apparatus includes a printed circuit board, a plurality of low pass filters and at least one grounded metal wall. Each of the low pass filters includes a low-pass-side inductor and a low-pass-side capacitor. At least two of the low-pass-side inductors of the low pass filters are manufactured on the printed circuit board by a printed-circuit-board-layout technology to form at least two low-pass-side printed-circuit-board-layout inductors. The at least one grounded metal wall blocks a magnetic interference between the low-pass-side inductors of the low pass filters. The low pass filter apparatus filters out a signal having a frequency above 1 GHz.

Abstract: A resistance-type splitting apparatus includes a transformer and a resistor distribution circuit. The resistor distribution circuit is electrically connected to the transformer. The resistor distribution circuit includes a plurality of distribution resistors. The distribution resistors are electrically connected to the transformer. The distribution resistors of the resistor distribution circuit are arranged as a radial pattern. The transformer receives a cable television signal. After the transformer receives the cable television signal, the transformer distributes the cable television signal through the distribution resistors. A transformer turns ratio of the transformer is adjusted to perform an impedance matching with the distribution resistors of the resistor distribution circuit.

Abstract: An RF directional coupler circuit assembly for matching high frequency cable TV apparatus includes a cover body, and a printed circuit board. The cover body includes a space. The space includes a bottom surface. An RF directional coupler circuit is arranged on the printed circuit board. A 0.01 mm˜2 mm gap is formed between the RF directional coupler circuit and the bottom surface when the printed circuit board is deposited in the space. The distance between the printed circuit board and the cover body is shorten because of the gap, so that the reflections of the high frequency signals and the signal fading are decreasing to achieve matching high frequency impedance characteristics.

Abstract: The Ethernet extension system contains at least a signal and power conversion device, a conversion device, and a coaxial cable connected in between. The signal and power conversion device receives baseband network signal and electricity in accordance with PoE, and delivers the baseband network signal and electricity to the conversion device through the coaxial cable. The conversion device then provides the baseband network signal to an ordinary Ethernet network device. Baseband network signal and electricity as such could be delivered through a coaxial cable beyond the conventional Ethernet without additional configuration of power supplies or power sources, and without repeatedly modulation and demodulation, coding and decoding, or conversion of communication protocols.

Abstract: An overcurrent protection device includes a feedback control circuit for outputting a control signal in accordance with a feedback signal that corresponds to an output current signal outputted at an output node of a target circuit, that is received from a feedback output end of the target circuit, and that is to be provided to a control input end of the target circuit so as to cause the feedback signal to reach a preset value. A current limiting circuit, connected to the output node for magnitude control of the output current signal, enables a connection control circuit to connect the feedback control circuit to the control input end when the output current signal is less than a predetermined current value, and enables the connection control circuit to isolate the feedback control circuit from the control input end when the output current signal is not less than the predetermined current value.

Abstract: A sound device of a video game system is provided. The video game system has at least a video game player having a first control circuit and a first communication interface and second communication interface. The sound device has a game controller, a third communication interface and a second control circuit. The game controller is connected to the first communication interface, the third communication interface is connected to the second communication interface and the second control circuit is connected to the third communication interface, a speaker, a microphone, a volume regulator and a microphone switch. A signal generated by operating the volume regulator and the microphone switch can be used by the second control circuit to control a volume of the speaker and to turn on/off the microphone, and players can communicate with each other via the speaker and the microphone without wearing an earphone and microphone while playing online video game.

Abstract: A video game system having sound device is provided. The video game system comprises a sound adaptor and a sound device connected to a first memory card slot and a second memory card slot of a game controller of the video game player such that a user can communicate with other users through a built-in microphone and speaker of the sound device within a valid range via wireless controller. Therefore, a user can directly execute a game by wirelessly controlling the game controller without wearing wired earphone and microphone.

Abstract: A wireless controller for a video game player is disclosed. The wireless controller for a video game player comprises a wireless receiver and a sound transformer that are connected with a first memory chip receiver of the video game player. The built-in microphone and amplifier of the wireless receiver allows the user to use the wireless controller to transmit signals and communicate with the wireless receiver wirelessly. Thus without using headset and microphone, the user can control the wireless controller and also communicate with the other online player within an effective transmission range.

Abstract: A game controller with a sound device for a video game player comprises a control circuit, an amplifier, a microphone, a sound transmission wire and a communication interface. The sound device is connected to a second memory chip receiver of the game controller, and the sound device is connected with the first memory chip receiver of the game controller by a sound transmission wire. The user can communicate with the other online players using the amplifier and microphone of the sound device, which is positioned in the second memory chip receiver. Therefore the user need not wear the headset with microphone for communicating with the other online players, thus the game controller of the present invention provides increased fun and convenience of playing the game.

Abstract: A wireless controller for a video game player is disclosed. The wireless controller for a video game player comprises a wireless receiver and a sound transformer that are connected with a first memory chip receiver of the video game player. The built-in microphone and amplifier of the wireless receiver allows the user to use the wireless controller to transmit signals and communicate with the wireless receiver wirelessly. Thus without using headset and microphone, the user can control the wireless controller and also communicate with the other online player within an effective transmission range.

Abstract: A game controller with an alarm clock comprising a control circuit, a sound chip, an amplifier, a communication interface, a plurality of buttons and a time setting button is provided. The sound chip is capable of generating a continuous sound frequency in response to a signal from the control circuit, and transmits the sound frequency to the amplifier for outputting the sound. The communication interface connects the game controller and the game system. The plurality of the buttons is electrically connected to the control circuit for the user to input control signal during the functioning of the game software of the game system. And the time setting button is electrically connected to the control circuit to enable the user to switch on or off the alarm clock. The time setting button is also electrically in contact with any one of plurality of buttons on the game controller to enable the use to set the time.

Abstract: A wireless game control device for use with a game machine main unit is constructed to include an audio video unit having a speaker and a microphone and a display screen, a communication interface, a control circuit, and a wireless audio video transmitter receiver circuit, the audio video unit communicating with the game machine main unit for transmitting and receiving audio and video signals wirelessly via the wireless audio video transmitter receiver circuit and the communication interface subject to the control of the control circuit so that the user can use the speaker of the audio video unit to receive voice (audio game signal) from the game machine main unit, the microphone to talk to a game partner player when playing an on-line game through the game machine main unit, and the display screen to watch the picture of a game software transmitted from the game machine main unit.