Abstract: According to one embodiment, an electronic device includes a board housed in a housing, a plurality of first modules mounted on the board and a second module. The first modules generating heat while in operation are mounted on the board at intervals while projecting from the board, and the first modules are arranged to be adjacent to each other inside the housing. At least one air flow path is formed between an adjacent pair of first modules. The second module is placed adjacent to one end side of the first modules across the air flow path and has a projecting height from the board lower than that of the first modules. A fan is housed in the housing. The fan creates an air flow inside the housing from the first modules towards the second module.

Abstract: An electronic module includes: a first circuit board and a second circuit board; and a conductive connector for electrically connecting a first conductive pattern of the first circuit board with a second conductive pattern of the second circuit board, wherein at least one of the first circuit board and the second circuit board is connected with the conductive connector through intrusion thereof.

Abstract: There is discolsed a cable modem device capable of reducing unnecessary signals inputted into a circuit substrate which processes signals and signal terminals from the outside and unnecessary radiation generated by the circuit substrate, the device having a hexahedral shield case which shields a circuit substrate, and a plurality of terminals for use in input/output of the signals with respect to the circuit substrate. Each of the terminals has a noise filter function, and is fixed to the shield case.

Abstract: According to one embodiment, a composite module includes a substrate, a first module mounted on the substrate, a second module mounted on the substrate and provided to be independent from the first module, and a heat radiating plate. The heat radiating plate is thermally connected to each of the first module and the second module, and serves to radiate heat from these modules to an outside.

Abstract: There is disclosed a cable modem device capable of reducing unnecessary signals inputted into a circuit substrate which processes signals and signal terminals from the outside and unnecessary radiation generated by the circuit substrate, the device having a hexahedral shield case which shields a circuit substrate, and a plurality of terminals for use in input/output of the signals with respect to the circuit substrate. Each of the terminals has a noise filter function, and is fixed to the shield case.

Abstract: There is discolsed a cable modem device capable of reducing unnecessary signals inputted into a circuit substrate which processes signals and signal terminals from the outside and unnecessary radiation generated by the circuit substrate, the device having a hexahedral shield case which shields a circuit substrate, and a plurality of terminals for use in input/output of the signals with respect to the circuit substrate. Each of the terminals has a noise filter function, and is fixed to the shield case.

Abstract: An antenna switching system includes: an antenna unit having an antenna and a switching circuit; a feeder line connected to the switching circuit; and a receiving unit connected to the feeder line. The switching circuit of the antenna unit is switched by a control signal supplied from a control signal sending portion included in the receiving unit.

Abstract: A cable modem module device includes a coaxial connector to transmit and receive high-frequency signals, a circuit board to which the coaxial connector is attached to protrude from its periphery in a direction parallel to its surface, and a first shield case formed in its portion corresponding to the coaxial connector with a cutout portion to avoid the coaxial connector so as to allow the circuit board to be housed from a direction perpendicular to the surface of the circuit board.

Abstract: A cable modem module including a first shield case configured to house a tuner unit, a first terminal used to input analog signals to the tuner unit and output the analog signals therefrom, a circuit board having the first terminal connected to it and configured to have a digital signal processing unit to digital process signals to be input to or output from the tuner unit, a second shield case configured to house the circuit board and the first shield case, and a plurality of second terminals each terminal having its one connected to the circuit board and its other end passed through the second shield case to project to outside and configured to input or output digital signals to or from the digital signal processing unit, each of the second terminals being comprised of a through capacitor.

Abstract: A cable modem module unit includes a tuner section configured to have an analog signal processing section for transmitting/receiving a high frequency signal, a digital signal processing section configured to perform digital processing on the signal input to and output from the tuner section, a shield case configured to hold the digital signal processing section and tuner section therein, and a terminal group configured to be connected at one end to the digital signal processing section and, at the other end, inserted into the shield case and extending outwardly to allow a digital signal to be input to, and output from, the digital signal processing section, the terminal group including a first terminal as part of the terminal group to allow a setting or checking to or for the digital signal processing section to be effected from outside the shield case.

Abstract: A cable modem module unit includes a tuner section configured with an analog signal processing unit for transmitting/receiving a high frequency signal via a coaxial connector, a first shield case configured to hold the tuner section therein with the coaxial connector externally exposed, a circuit board having the first shield case thereon and configured to provide a digital signal processing section including a memory for allowing the inputting and outputting of digital data, the digital signal processing section performing digital processing on a signal input to and output from the tuner section, and a second shield case configured to hold the circuit board and first shield case therein with the coaxial connector externally exposed, on the same plane of the circuit board, the coaxial connector and memory being located in an opposed relation with the first shield case in between.

Abstract: A cable modem module device comprising a coaxial connector to transmit and receive high-frequency signals, a circuit board to which the coaxial connector is attached to protrude from its periphery in a direction parallel to its surface, and a first shield case formed in its portion corresponding to the coaxial connector with a cutout portion to avoid the coaxial connector so as to allow the circuit board to be housed from a direction perpendicular to the surface of the circuit board.

Abstract: A cable modem module comprising a first shield case configured to house a tuner unit, a first terminal used to input analog signals to the tuner unit and output the analog signals therefrom, a circuit board having the first terminal connected to it and configured to have a digital signal processing unit to digital process signals to be input to or output from the tuner unit, a second shield case configured to house the circuit board and the first shield case, and a plurality of second terminals each terminal having its one connected to the circuit board and its other end passed through the second shield case to project to outside and configured to input or output digital signals to or from the digital signal processing unit, each of the second terminals being comprised of a through capacitor.

Abstract: There is disclosed a cable modem device capable of reducing unnecessary signals inputted into a circuit substrate which processes signals and signal terminals from the outside and unnecessary radiation generated by the circuit substrate, the device having a hexahedral shield case which shields a circuit substrate, and a plurality of terminals for use in input/output of the signals with respect to the circuit substrate. Each of the terminals has a noise filter function, and is fixed to the shield case.