摘要:
A circuit for a lighting device comprises a sub-circuit which comprises a series current regulator and a group of solid state light emitters. The current regulator and the solid state light emitters are arranged in series. In some embodiments, the circuit further comprises a fan electrically connected in series in the sub-circuit. In some embodiments, the circuit further comprises a second sub-circuit which comprises a second series current regulator and a second group of solid state light emitters, the first sub-circuit and the second sub-circuit being arranged in parallel. In some embodiments, an anode of the series current regulator is electrically connected to a cathode of one of the solid state light emitters. Also, methods of lighting wherein a sum of voltage drops across light emitters and a current regulator is in the range of from 1.2 to 1.6 times the line voltage.
摘要:
A child entertainment apparatus is convertible between a swing mode and a jumper mode. The apparatus includes a frame, and a support convertible between a swinging configuration and a bouncing configuration. In the jumper mode, the support suspends the seat from the frame by a substantially flexible section, and in the swing mode, the support suspends the seat from the frame by a substantially rigid section. A bypass section is movable between an engaged position wherein the bypass section provides a substantially rigid connection between the frame and the seat, and a disengaged position wherein the substantially flexible section of the first support provides a flexible connection between the frame and the seat. The seat may be convertible between a feet forward position for the swing mode and a feet down position for the jumper mode.
摘要:
A stroller accessory including a frame having first and second attachment sites to attach the frame to a stroller, at least one speaker attached to the frame, and an input coupled to the at least one speaker. An amplifier circuit may be coupled between the at least one speaker and the input. The stroller accessory may be attached to a stroller.
摘要:
A foldable bassinet is disclosed. The bassinet can be transformed from an erected position wherein a floor of the bassinet is substantially horizontal to ground, and elevated therefrom by a stand, to a folded position wherein the bassinet is compacted into a relatively small size. Using a uni-directional hinge in the floor of the bassinet, and a plurality of over-center locks, the floor of the bassinet can be locked into the horizontal position easily and effectively, without any structure provided directly below the center of the bassinet floor.
摘要:
An open top swing which includes a frame and mounting housings. A swing assembly depends from the pivot pins and includes a pair of spaced legs to which a swing is releasably attached for moving the swing closer to or away from the pivot pins to permit a change in the swing speed and the distance of the arcuate path that the swing will travel.
摘要:
A method is provided for monitoring operational performance of a communication system including a mobile telephone unit and a plurality of control stations, while the mobile telephone unit is in operation within the communication system. The method makes use of signals passing between the mobile telephone unit and one of the plurality of control stations during such operation. The method including the steps of establishing an identity of the mobile telephone unit from said signals and utilizing predetermined operational characteristics of the signals as a source of information for monitoring operation of the mobile telephone unit. Therefore, the method can detect automatically a faulty mobile telephone unit or control station during operation of the mobile telephone unit.
摘要:
Play gyms and methods of operating the same are disclosed. A disclosed example includes a floor mat dimensioned to be positioned within a play yard and/or a bassinet. It also includes a play gym to suspend an object above the mat when the mat is positioned in the play yard and/or the bassinet, and at least one connector to couple the play gym to the mat when the mat is removed from the play yard and/or the bassinet.