Abstract: A communication control system (1) includes a communication status measurement unit (32) measuring communication history data, a communication history transmitting unit (34) transmitting the communication history data with user identification information, a remaining communication amount information storage unit (52) prestoring user identification information and remaining communication amount data in association, a communication history receiving unit (53), a communication history adding unit (54) adding up the communication history data respectively corresponding to the user identification information, a communication amount comparison unit (55) comparing the remaining communication amount data with an added result, and a restriction signal transmitting unit (56) transmitting a control signal for restricting communications.

Abstract: There is provided a mobile wireless device capable of preventing antenna characteristics from degrading by feeding electric power at a position hardly affected by a human body such as a hand or other body part. In the mobile wireless device, a first circuit board (101) is provided on a first chassis (110) and has a ground layer; a second circuit board (105) is provided on a second chassis (120) and has a ground layer. A ground terminal of a wireless portion (104) is connected to the ground layer of the first circuit board (101) at the same voltage level and is also electrically connected through the wireless portion (104) to a matching circuit (103). The ground layer of the second circuit board (105) is electrically connected to a hinge conducting portion (106) by electrostatic capacitance coupling. The hinge conducting portion (106) is connected through a third conduction portion (107) to a board connection portion (102) and feeds power to the wireless portion through the matching circuit (103).

Abstract: A foldable portable radio device adapted to a plurality of frequency bands has a good antenna performance in all the use frequency bands even in both open and folded states. In the foldable portable radio device, a control section (24) controls switching means (20) to connect a sub-matching circuit (19) and a first circuit element (21) when a first use frequency band is used and further when the foldable portable radio device is in the open state and to connect the sub-matching circuit (19) and a second circuit element (22) when a first use frequency band is used and further when the foldable portable radio device is in the closed state, or when a second use frequency band is used irrespective of the open/closed state of the foldable portable radio device.

Abstract: There is provided a mobile wireless device capable of preventing antenna characteristics from degrading by feeding electric power at a position hardly affected by a human body such as a hand or other body part. In the mobile wireless device, a first circuit board (101) is provided on a first chassis (110) and has a ground layer; a second circuit board (105) is provided on a second chassis (120) and has a ground layer. A ground terminal of a wireless portion (104) is connected to the ground layer of the first circuit board (101) at the same voltage level and is also electrically connected through the wireless portion (104) to a matching circuit (103). The ground layer of the second circuit board (105) is electrically connected to a hinge conducting portion (106) by electrostatic capacitance coupling. The hinge conducting portion (106) is connected through a third conduction portion (107) to a board connection portion (102) and feeds power to the wireless portion through the matching circuit (103).

Abstract: Provided is a radio communication device which can prevent degradation of an antenna by controlling the VSWR and the current phase of antennas arranged adjacent to one another. In this device, an antenna (201) has a predetermined resonance frequency. A breaking circuit (203) is connected to the antenna (201) in parallel to a rectification circuit (205) so as to shut off the resonance frequency of the antenna (201). A termination circuit (204) electrically terminates the output side of the breaking circuit (203). An antenna (207) is arranged in the vicinity of the antenna (201) and has a resonance frequency different from a resonance frequency of the antenna (201). A breaking circuit (209) is connected to the antenna (207) in parallel to a rectification circuit (211) and shuts off the resonance frequency of the antenna (207). A termination circuit (210) terminates the output side of the breaking circuit (209).

Abstract: A foldable portable radio device adapted to a plurality of frequency bands has a good antenna performance in all the use frequency bands even in both open and folded states. In the foldable portable radio device, a control section (24) controls switching means (20) to connect a sub-matching circuit (19) and a first circuit element (21) when a first use frequency band is used and further when the foldable portable radio device is in the open state and to connect the sub-matching circuit (19) and a second circuit element (22) when a first use frequency band is used and further when the foldable portable radio device is in the closed state, or when a second use frequency band is used irrespective of the open/closed state of the foldable portable radio device.

Abstract: Provided is a portable communication device, specifically a portable wireless device which is thin while maintaining excellent reception sensitivity even when the device is laid on a metal top panel. As such device (100), a foldable portable cellular phone (100) is provided with a battery box (117) opened on the side of a rear surface (115), and a circuit board (121) having an antenna power feed point (124) is arranged inside a lower case (114). The battery box (117) is covered with a battery cover section (140) removably attached to the lower case (114). The battery cover section (140) is formed of a member having conductivity, and attached to the lower case (114) by having contact point members (151, 152) in between for carrying a current to a reinforcing conductive plate (125) which is to be a GND layer of the circuit board (121).

Abstract: A casing used in the outdoors is composed of a body which is provided with suspending units for suspending the body from a wire stretched over the ground and has openings situated opposite to each other, and covers for covering the openings of the body. The body is shaped into a tubular configuration having a predetermined cross-section. The body is provided with gaskets on contact surfaces which are respectively formed on peripheries of the openings of the body, and brought into contact with the covers. The covers are respectively fitted to the body via hinges so as to be rotational therearound. The body is provided with supporting members situated in the inside space of the body, and electronic circuit units are fitted to the supporting members.

Abstract: A lid or door hinge structure is provided, which can reduce the number of components and eliminate the possibility of detachment from a body portion as a result of opening or closing motion and also is durable very much. In assembling, a protuberance 4 of a lid 2 is inserted in a recess 5 of a body portion 1. A recess 6 of the body portion 1 and a thorough hole 8 of the lid 2 are pivoted by each other by an L-shaped pin 7. The L-shaped pin 7 is then accommodated in an accommodation space 11 formed in the lid 2 by turning it about a pivotal axis.

Abstract: A structure for introducing an optical cable into a communication apparatus includes an adapter (3) to be affixed to a side wall (21) forming a part of the casing (2) of the apparatus. A case (4) is fitted in a bore axially extending throughout the center of the adapter (3). A ring nut assembly (5) holds an optical cable (6) at its center and is connected to the adapter (3) in such a manner as to cover the case (4). The cable (6) includes a tension merber (61) introduced into the casing (2) via the case (4) and adapter (3) and affixed by a tension member affixing portion (46) disposed in the casing (2). In this condition, the cable (6) is firmly affixed by the ring nut assembly (5) and tension member affixing portion (46), i.e., at two points. The fibers of the cable (6) are therefore free from breakage ascribable to a twisting force or a pulling force.

Abstract: A coaxial repeater of the present invention includes a connector having an L shaped metal piece 1 and an insulating casing 2. The connector is mounted in an introducing hole 3a-1 provided in a casing 3. A connecting portion 8a of an amplifier portion 8 is electrically connected to one of protrusions of the connector and a center conductor 4a-1 of an adapter 4-1 is fitted in and electrically connected to the other protrusion of the connector. The introducing hole 3a-1 becomes a space 3g-1 when the adapter 4a-1 and the amplifier portion 8 are mounted. The space 3g-1 is shielded from a receiving space 3b of the casing 3. With the coaxial repeater constructed as mentioned above, it is possible to improve electrical characteristics of a device operating in a high frequency band, facilitate the maintenance thereof, reduce the number of parts thereof and reduce the cost of parts.

Abstract: The invention realizes a CATV repeater which has a reduced distance from a coaxial connector of a coaxial cable to a receptacle on a printed circuit board of an amplifier to prevent deterioration of the high frequency characteristic and besides facilitates connection and is tough against an outdoor environment. Receptacle 32 of amplification device 30 can be inserted into guide metal member 11 of body case 10, and the core of receptacle 32 is connected to core 21 of coaxial connector 20 of a coaxial cable by L-shaped connection pin 13.

Abstract: The invention realizes a CATV repeater which has a reduced distance from a coaxial connector of a coaxial cable to a receptacle on a printed circuit board of an amplifier to prevent deterioration of the high frequency characteristic and besides facilitates connection and is tough against an outdoor environment. Receptacle 32 of amplification device 30 can be inserted into guide metal member 11 of body case 10, and the core of receptacle 32 is connected to core 21 of coaxial connector 20 of a coaxial cable by L-shaped connection pin 13.

Abstract: A surplus cable disposition board is mounted on a framework for housing an electro-optical equipment having an optical fiber cable, rotatably around a horizontal axis parallel to the front panel of the framework. In a stationary state, the disposition board is clamped at an angular position inclined inward from the surface of the front panel. On the back surface of the disposition board, cable saddles are fixed for holding the optical fiber cable.