Abstract: Provided is a wireless communication system in which, based on a random access scheme, a transmission opportunity (TXOP) acquired by a wireless access point is granted to a wireless station when performing uplink data transmission from the wireless station to the wireless access point and the TXOP acquired by the wireless station is granted to the wireless access point when performing downlink data transmission from the wireless access point to the wireless station, the system includes a scheduling unit for TXOP granting determining one or more wireless stations having a quality of an uplink data transmission lower than a prescribed value as TXOP responders to which the wireless access point grants the TXOP, and determining one or more wireless stations having a quality of a downlink data transmission lower than the prescribed value as TXOP holders which grant the TXOP to the wireless access point.

Abstract: A horizontal synchronization detection device includes a pulse detection portion that detects a pulse in a horizontal synchronization signal contained in a video signal and acquires a pulse width of the detected pulse, a synchronization pulse decision portion that determines the pulse satisfying a condition that a difference between its pulse width and a reference pulse width is within a first predetermined range as a synchronization pulse, a mean pulse width acquisition portion that averages out a pulse width of the synchronization pulse for each field and obtains a mean pulse width thereof, and a reference pulse width correction portion that determines, for each synchronization pulse in a current field, whether a difference between its pulse width and the mean pulse width in a previous field is within a second predetermined range, and corrects the reference pulse width and/or the first predetermined range based on the determination result.

Abstract: Pulse detection portion detects pulses in a horizontal synchronization signal and acquires the occurrence period and the pulse width of the detected pulses. Synchronization pulse decision portion determines pulses, for which the differences between the occurrence period and the reference period and between the pulse width and the reference pulse width are within their respective error tolerance ranges, as synchronization pulses. Mean period acquisition portion obtains the mean period by averaging occurrence periods of the synchronization pulses. Reference period correction portion carries out either or both of correcting the reference period so as to get closer to the mean period and correcting the error tolerance range of the reference period so as to get narrower, under the condition that the occurrence frequency of the synchronization pulses for which the difference between the occurrence period and the mean period is outside of a predetermined tolerance range exceeds a predetermined threshold.

Abstract: An engagement member (29), which is activated by operation of an operating button (40), is configured to be protruded from and retracted into respective positioning recesses (15, 16), facilitating the positional adjustment of a lid (3) and securing a high position-retaining force for the lid (3) in normal use. In order to cope with an accidental external force, a base member (7) includes a cantilever member (51) formed of slits, and the cantilever member (51) has a positioning recess (16) formed in a leading portion such that the cantilever member (51) is flexed to bring the engagement member (29) out of engagement with the positioning recess (16) when a load having a certain value or more is applied through the engagement member (29).

Abstract: An exterior member mounting unit is used for installing an exterior member to a device, such as a vehicle roof. The mounting unit includes a first part detachably supporting the exterior member so that an upper surface thereof is covered by the exterior member, a second part detachably held by the first part, and a screw for attaching the exterior member to the device while utilizing the second part detachably supported by the first part as a seating plate.

Abstract: A bumper fixture is interposed between an extended-directional end portion of a bumper and an auto body as to extend the extended-directional end portion of the bumper mounted on the auto body to form a part of a wheel house. The bumper fixture includes a mounting portion mountable to an extended-directional outer end wall of the bumper on one extended-directional end portion of the bumper, and the mounting portion is elastically deformable by a greater than predetermined load. A bumper mounting structure includes the bumper fixture such that an extended directional outer end wall of the bumper is mounted on the mounting portion.

Abstract: An engagement member (29), which is activated by operation of an operating button (40), is configured to be protruded from and retracted into respective positioning recesses (15, 16), facilitating the positional adjustment of a lid (3) and securing a high position-retaining force for the lid (3) in normal use. In order to cope with an accidental external force, a base member (7) includes a cantilever member (51) formed of slits, and the cantilever member (51) has a positioning recess (16) formed in a leading portion such that the cantilever member (51) is flexed to bring the engagement member (29) out of engagement with the positioning recess (16) when a load having a certain value or more is applied through the engagement member (29).

Abstract: A first candidate selection portion 130 selects format candidates based on the horizontal synchronizing cycle and the vertical synchronizing cycle of an input video signal. A second candidate selection portion 140 selects formats having the tolerance ranges for the horizontal synchronizing cycles within which the horizontal synchronizing cycle of the input video signal falls as format candidates. A format decision portion 160 determines the format of the input video signal from format candidates from the first candidate selection portion 130 when format candidate(s) is obtained by the first candidate selection portion 130, and determines the format of the input video signal from format candidates selected by the second candidate selection portion 140 when no format candidate is obtained by the first candidate selection portion 130.

Abstract: Pulse detection portion detects pulses in a horizontal synchronization signal and acquires the occurrence period and the pulse width of the detected pulses. Synchronization pulse decision portion determines pulses, for which the differences between the occurrence period and the reference period and between the pulse width and the reference pulse width are within their respective error tolerance ranges, as synchronization pulses. Mean period acquisition portion obtains the mean period by averaging occurrence periods of the synchronization pulses. Reference period correction portion carries out either or both of correcting the reference period so as to get closer to the mean period and correcting the error tolerance range of the reference period so as to get narrower, under the condition that the occurrence frequency of the synchronization pulses for which the difference between the occurrence period and the mean period is outside of a predetermined tolerance range exceeds a predetermined threshold.

Abstract: A bumper fixture is interposed between an extended-directional end portion of a bumper and an auto body as to extend the extended-directional end portion of the bumper mounted on the auto body to form a part of a wheel house. The bumper fixture includes a mounting portion mountable to an extended-directional outer end wall of the bumper on one extended-directional end portion of the bumper, and the mounting portion is elastically deformable by a greater than predetermined load. A bumper mounting structure includes the bumper fixture such that an extended directional outer end wall of the bumper is mounted on the mounting portion.

Abstract: An exterior member mounting unit is used for installing an exterior member to a device, such as a vehicle roof. The mounting unit includes a first part detachably supporting the exterior member so that an upper surface thereof is covered by the exterior member, a second part detachably held by the first part, and a screw for attaching the exterior member to the device while utilizing the second part detachably supported by the first part as a seating plate.

Abstract: The correlated double sampling circuit includes a plurality of sampling circuits. Each of the sampling circuits samples each of a plurality of color signals which are sequentially output from a solid-state imaging device.

Abstract: Disclosed are an iron-carbon composite in which 10 to 90% of the internal space of a nanoflake carbon tube or a nested multi-walled carbon nanotube is filled with iron carbide or iron; a carbonaceous material containing such iron-carbon composites; and a process for preparing the same. The iron-carbon composite is useful for electron emitting materials and other applications.

Abstract: A form-fill sealing machine (1) for manufacturing resealable packages (W) includes a tearable line forming device (30) that serves to form tearable lines (104) in a film (F). A labeling device (40) serves to stick re-stickable labels (103) onto the film in positions to cover respective tearable lines. A tube forming device (60) serves to form the film into a tubular film (T). A first sealing device (80) serves to seal lapped edges of the tubular film so as to form a lengthwise sealed portion (111). A second sealing device (90) serves to seal the tubular film in a crosswise direction, so that crosswise sealed portions (109) are formed on the tubular film. Each tearable line is positioned between two adjacent crosswise sealed portions and adjacent to one of two adjacent crosswise sealed portions.

Abstract: Disclosed are an iron-carbon composite in which 10 to 90% of the internal space of a nanoflake carbon tube or a nested multi-walled carbon nanotube is filled with iron carbide or iron; a carbonaceous material containing such iron-carbon composites; and a process for preparing the same. The iron-carbon composite is useful for electron emitting materials and other applications.

Abstract: Disclosed are an iron-carbon composite in which 10 to 90% of the internal space of a nanoflake carbon tube or a nested multi-walled carbon nanotube is filled with iron carbide or iron; a carbonaceous material containing such iron-carbon composites; and a process for preparing the same. The iron-carbon composite is useful for electron emitting materials and other applications.

Abstract: A form-fill sealing machine (1) for manufacturing resealable packages (W) includes a tearable line forming device (30) that serves to form tearable lines (104) in a film (F). A labeling device (40) serves to stick re-stickable labels (103) onto the film in positions to cover respective tearable lines. A tube forming device (60) serves to form the film into a tubular film (T). A first sealing device (80) serves to seal lapped edges of the tubular film so as to form a lengthwise sealed portion (111). A second sealing device (90) serves to seal the tubular film in a crosswise direction, so that crosswise sealed portions (109) are formed on the tubular film. Each tearable line is positioned between two adjacent crosswise sealed portions and adjacent to one of two adjacent crosswise sealed portions.

Abstract: Disclosed are an iron-carbon composite in which 10 to 90% of the internal space of a nanoflake carbon tube or a nested multi-walled carbon nanotube is filled with iron carbide or iron; a carbonaceous material containing such iron-carbon composites; and a process for preparing the same. The iron-carbon composite is useful for electron emitting materials and other applications.

Abstract: A process for producing a carbon fiber reinforced carbon composite material, comprising dispersing a short fibrous bundle of carbon fibers which comprises a plurality of single fibers, preparing a sheet in which fibers are in the two-dimensional random orientation, impregnating with a resin or pitch, laminating and molding, and then applying a baking and densifying treatment, a dispersion degree of the bundle of carbon fibers being controlled based on the formula (1) expressing correlation between the dispersion degree of the bundle of carbon fibers and the mechanical strength of the carbon fiber reinforced composite material:Dispersion degree=A-B.times.coefficient of friction (1)wherein A and B are constants determined experimentally, to produce a carbon fiber reinforced carbon composite material having desired mechanical characteristic.

Abstract: In an acceleration sensor for use in an automobile seatbelt system comprising a rolling body which moves when subjected to an acceleration, a cup-like receptacle member for supporting the rolling body on a sloping surface rising towards an outer periphery of the receptacle member, and a pivotally mounted actuator over the rolling body for triggering a web halting mechanism, wherein the sloping surface is formed with a plurality of radially disposed ribs, so that the rolling body is prevented from rolling around the sloping surface even when subjected to vibration from rough roads. The invention prevents the web belting mechanism from being triggered spuriously without diminishing the sensitivity of the acceleration sensor in a bona fide vehicular emergency situation.