Abstract: A connector includes: terminal that includes a box-like portion, into which a mating terminal is inserted; a housing that has an accommodating hole accommodating the box-like portion; and a retainer that is attached to the housing in a manner to be displaceable in a crossing direction, which crosses with a direction in which the box-like portion is inserted. A pressing piece is formed on an upper surface of the accommodating hole, and a protrusion is formed on the lower surface. The retainer includes a protrusion portion. When the retainer is positioned on the first position, the box-like portion is allowed to be inserted into the accommodating hole and the portion is pushed by the pressing piece and displaced in the crossing direction so as to make a step portion of the box-like portion be retained and a rear end of the box-like portion be retained, producing a primary locking state.

Abstract: A communication system including a processor, which acquires a communication-time performance parameter and a non-communication-time performance parameter for each of a first wireless link and a second wireless link, calculates a degree of interference based on the communication-time performance parameter and the non-communication-time performance parameter of the second wireless link, corrects the communication-time performance parameter in accordance with a bandwidth which is identified based on the degree of interference, and selects a wireless link to be used for communication from among the first wireless link and the second wireless link, based on the corrected communication-time performance parameter.

Abstract: To make it possible to speedily detect a radio link via which communication is possible, even in a case where the quality of wireless communication abruptly varies, a selecting means (12) is configured to control a communicating means (14) such that the communicating means (14) transmits a control signal which indicates the status of a first candidate radio link via the first candidate radio link. A second selecting means (13) is configured to select a second candidate radio link from among a plurality of radio links according to at least one selected from the group consisting of whether the control signal is successfully transmitted by the communicating means (14) and the status of an acknowledgment of the control signal, the second candidate radio link being a candidate to which a switch is made from a radio link used for communication.

Abstract: A connector includes: terminal that includes a box-like portion, into which a mating terminal is inserted; a housing that has an accommodating hole accommodating the box-like portion; and a retainer that is attached to the housing in a manner to be displaceable in a crossing direction, which crosses with a direction in which the box-like portion is inserted. A pressing piece is formed on an upper surface of the accommodating hole, and a protrusion is formed on the lower surface. The retainer includes a protrusion portion. When the retainer is positioned on the first position, the box-like portion is allowed to be inserted into the accommodating hole and the portion is pushed by the pressing piece and displaced in the crossing direction so as to make a step portion of the box-like portion be retained and a rear end of the box-like portion be retained, producing a primary locking state.

Abstract: In order for wireless communication to be successfully stabilized, a communication system (100) includes: an acquiring means (21) for acquiring a communication-time performance parameter and a non-communication-time performance parameter for each of a first wireless link and a second wireless link, the communication-time performance parameter representing a wireless link communication performance which is indicated in a case where a communication apparatus (10) is conducting wireless communication, the non-communication-time performance parameter representing a wireless link communication performance which is indicated in a case where the communication apparatus is not conducting wireless communication, the communication apparatus conducting wireless communication with use of at least one selected from the group consisting of the first wireless link and the second wireless link; a calculating means (26) for calculating a degree of interference in accordance with the communication-time performance parameter an

Abstract: In a control apparatus, a relative value calculation unit calculates a first relative value of a second communication quality parameter value acquired by an acquisition unit relative to a first communication quality parameter value acquired by the acquisition unit. The first communication quality parameter value is a communication quality parameter value for an in-use channel, and the second communication quality parameter value is a communication quality parameter value for a standby channel. Further, a channel switching control unit determines whether or not a radio channel set as the standby channel should be switched from the standby channel to the in-use channel based on a comparison result obtained by comparing the first relative value calculated by the relative value calculation unit and a first threshold.

Abstract: In a control apparatus, a channel selection control unit selects a “switching destination channel pair” from among a plurality of “switching destination channel pair candidates” in a plurality of radio channels. The “switching destination channel pair” is selected based on the degree of similarity between two BSSIDs of two radio channels constituting the currently-connected radio channel pair, and a plurality of degrees of similarity each of which is a degree of similarly between two BSSIDs of two radio channels constituting a respective one of the plurality of switching destination channel pair candidates. A channel switching control unit performs control so that radio units connect to the switching destination channel pair selected by the channel selection control unit.

Abstract: A distributing control unit performs provisional switching control processing to a distributing unit when a link in use for first data units is a first link and a candidate link to be used is a second link. For example, the distributing control unit distributes at least one of the data units of the first data units of the data stream to the second link and distributes other data units to the first link. A determining unit determines whether or not a link in use for second data units subsequent to the first data units is to be switched from the first link to the second link based on first and second communication qualities, the first and second communication qualities being based on feedback information. The first and second communication qualities are communication qualities of the other data units and the at least one of the data units, respectively.

Abstract: A distributing control unit performs provisional switching control processing to a distributing unit when a link in use for first data units is a first link and a candidate link to be used is a second link. For example, the distributing control unit distributes at least one of the data units of the first data units of the data stream to the second link and distributes other data units to the first link. A determining unit determines whether or not a link in use for second data units subsequent to the first data units is to be switched from the first link to the second link based on first and second communication qualities, the first and second communication qualities being based on feedback information. The first and second communication qualities are communication qualities of the other data units and the at least one of the data units, respectively.

Abstract: Provided is a connector including: a body forming component into which an upper contact group and a lower contact group are press-fitted forward in a fitting direction; and an upper contact insert component formed integrally with the upper contact group through insert molding. The upper contact insert component is arranged behind the lower contact group.

Abstract: To satisfy the demand for a reduction in height, provided is a technique for reducing a gap between a motherboard and a daughterboard in the state where the daughterboard is connected to the motherboard. A card edge connector is used to be mounted on a connector mounting surface of a mainboard to connect a memory module to the mainboard. The card edge connector includes a latch portion for pressing the memory module to be displaced in a direction away from the connector mounting surface, toward the connector mounting surface. The latch portion is configured to be elastically displaceable in the direction away from the connector mounting surface.

Abstract: A printer apparatus includes a printer body including an opening part that has a protruding part, a support part including a rotary shaft and rotatably attached to the printer body to rotate about the rotary shaft, a platen unit provided in the support part, and a shaft bearing including a projecting part and rotatably supports the platen roller. The opening part receives the shaft bearing. In a state where the platen unit is installed in the printer body, the projecting part and the protruding part contact each other. In a case of removing the platen unit from the printer body, the shaft bearing and the support part rotate in a same direction.

Abstract: A printer apparatus includes a printer body including an opening part that has a protruding part, a support part including a rotary shaft and rotatably attached to the printer body to rotate about the rotary shaft, a platen unit provided in the support part, and a shaft bearing including a projecting part and rotatably supports the platen roller. The opening part receives the shaft bearing. In a state where the platen unit is installed in the printer body, the projecting part and the protruding part contact each other. In a case of removing the platen unit from the printer body, the shaft bearing and the support part rotate in a same direction.

Abstract: A card edge connector includes an elongated housing; upper and lower stage contacts and held by the housing; and arm members for pressing, toward a connector mounting surface, a memory module to be displaced in a direction away from the connector mounting surface. Inserting an arm inserted portion of each arm member in an insertion groove of the housing allows the housing to hold each arm member freely swingable about the arm inserted portion with respect to the housing. Hemispherical projections for securing at least a predetermined amount of gap amounts of swing gaps are provided in the swing gaps and formed in the longitudinal direction of the housing between the arm member within the insertion groove and the housing.

Abstract: A card edge connector is connectable to a card having a side edge. The card edge connector has a holding member extending in a first direction and a pair of arms each extending in a second direction perpendicular to the first direction from the holding member. Each of the arms includes an abutment portion and a spring portion. The spring portion is bendable elastically outward in the first direction. The spring portion has a latch and an abutting portion. The latch is engaged with the side edge of the card when the card edge connector is connected to the card. When the connected card presses the latch along a third direction perpendicular to both the first direction and the second direction, the abutting portion is brought into contact with the abutment portion so that the abutting portion regulates a movement of the latch in the third direction.

Abstract: A card edge connector includes an elongated housing; upper and lower stage contacts and held by the housing; and arm members for pressing, toward a connector mounting surface, a memory module to be displaced in a direction away from the connector mounting surface. Inserting an arm inserted portion of each arm member in an insertion groove of the housing allows the housing to hold each arm member freely swingable about the arm inserted portion with respect to the housing. Hemispherical projections for securing at least a predetermined amount of gap amounts of swing gaps are provided in the swing gaps and formed in the longitudinal direction of the housing between the arm member within the insertion groove and the housing.

Abstract: A latching module is configured to be attached and fixed to a unit. The unit is designed to be detachably installed in an electronic apparatus along a predetermined direction. The electronic apparatus has an engaged portion. The latching module comprises a base member, an operative member, a locking member, a lock urge member and a release mechanism. The base member is formed with a cam groove. The base member is configured to be fixed to the unit so that the base member is unable to move relative to the unit. The operative member is supported by the base member so as to be projectable outwardly in the predetermined direction from the latching module. The locking member has an engagement portion and a pivot portion. The engagement portion is to be engaged with the engaged portion. The locking member is supported by the base member so that the engagement portion is pivotable on the pivot portion from an engaged position to a released position.

Abstract: To satisfy the demand for a reduction in height, provided is a technique for reducing a gap between a motherboard and a daughterboard in the state where the daughterboard is connected to the motherboard. A card edge connector is used to be mounted on a connector mounting surface of a mainboard to connect a memory module to the mainboard. The card edge connector includes a latch portion for pressing the memory module to be displaced in a direction away from the connector mounting surface, toward the connector mounting surface. The latch portion is configured to be elastically displaceable in the direction away from the connector mounting surface.