43results about How to "Solve the problem of not enough" patented technology

The invention discloses a track type slidable socket. The track type slidable socket includes a socket attaching track, a power supply wire, a socket shell, socket holes and a plug, wherein the socket attaching track is installed on an indoor or outdoor building wall, the power supply wire is installed in the socket attaching track, the socket holes are installed at the front surface of the socket shell, and the plug is installed on the back surface of the socket shell. The track type slidable socket of the invention is provided with the socket holes in different standards and the unified plug, and therefore, with the track type slidable socket adopted, electric appliance power utilization requirements of tourists or students who come to China from countries in which sockets in other standards are used or tourists or students from countries in which sockets in national standards are used, can be satisfied; a plurality of sockets can be additionally adopted, so that inconvenient charging which is caused by insufficient sockets in many occasions can be eliminated; and the socket of the invention can linearly slide on the track, and therefore, the problem of incapability of realizing charging which is caused by a situation in which the socket is too far away from a target charging electric appliance and a wire is too short can be solved.

The present invention discloses an uplink-downlink time slot proportion information notifying method of time division duplex system and a device thereof. The method and the device correlate the resource magnitude information of physical hybrid automatic request retransmission indicating channel PHICH in the main broadcasting information with the uplink-downlink time slot proportion information oftime division duplex system. The uplink-downlink time slot proportion information of time division duplex system, which is correlated with the magnitude information of PHICH resource, is notified to the user facility through the main broadcasting information. The magnitude information of PHICH resource is correlated with the uplink-downlink time slot proportion of time division duplex system, thereby providing more elaborate PHICH resource magnitude division for the TDD system and avoiding the wastage of PHICH resource.

The invention discloses a matrix keyboard circuit, a scanning method, a scanning device, a processor and a handheld terminal. The matrix keyboard circuit comprises a normal phase matrix, a reverse phase matrix and / or an independent matrix. The matrix keyboard circuit disclosed by the embodiment of the invention comprises the normal phase matrix, the reverse phase matrix and / or the independent matrix. Under the condition of not adding a scanning signal, a keyboard is scanned by using the characteristic that the same scanning signal has different scanning results in different matrixes, the number of scanned keys can be greatly increased, the problem that input / output (IO) ports are not enough is solved, and the performance of the terminal is improved.

The invention discloses a plastic trash can which comprises a pedestal, wherein a first trash can body and a second trash can body are mounted on the left and right sides of the upper end of the pedestal; a middle shaft plate is mounted between the first trash can body and the second trash can body; a spring is mounted at the bottom end of an inner cavity of the middle shaft plate; the upper end of the spring is fixedly connected with an extraction plate; the extraction plate is T-shaped; the upper end of the extraction plate is fixedly connected with a can cover; clamping slots are formed in the left and right sides of the lower end of the can cover; the clamping slots are located right above the first trash can body and the second trash can body; and bulges matched with grooves and arc-shaped blocks are reserved at two ends of the clamping slots. The plastic trash firstly solves the problem that the space is not enough, and then clamps hinged with plastic bags are clamped into the grooves to control the plastic bags, so that the plastic bags cannot easily slide off when blown by wind; after the can cover is closed, a user can directly hold the can cover without feeling sick; and therefore, the plastic trash can is a novel product very worthy of being popularized.

The invention discloses a method for releasing a port of carrier-grade network address translation equipment. According to the method, a carrier-grade network address translation device is involved; the carrier-grade network address translation device comprises a network address translation module, a port release module, a user address mapping table, a local translation mapping table, an idle port list and a local session mapping table; the carrier-grade network address translation device releases the port according to the occupation situation of the port accessed by a user; and the carrier-grade network address translation device executes the following steps on an arrived message: (a) inquiring the local translation mapping table; (b) inquiring the user address mapping table; (c) releasing the port; and (d) processing the local session mapping table.

The invention discloses a test system for an interface board. The test system for the interface board comprises a vector network analysis unit and a signal transfer unit, wherein the signal transfer unit is used for inputting first original signals of a to-be-input interface board respectively to the vector network analysis unit and an interface board, for receiving second transmitting signals output by the interface bard after second original signals are transmitted by the interface board, and for transmitting the second transmitting signals to the vector network analysis unit; and the vector network analysis unit I is used for receiving the first original signals, for receiving first transmitting signals output by the interface bard after the first original signals are transmitted by the interface board, for testing the interface board according to the first original signals and the first transmitting signals, for receiving the second original signals of the to-be-input interface board, for accessing the second transmitting signals from the signal transfer unit, and testing the interface board according to the second original signals and the second transmitting signals. By means of the technical scheme, the problem that an existing test method is not perfect is resolved.

The invention discloses a single-input double-output pulse width modulation (PWM) signal producing circuit, comprising a phase inverter (101), a regulating circuit (102), a first PWM output circuit (105) and a second PWM output circuit (106), wherein the phase inverter (101) is connected with a PWM port of a microcontroller; the regulating circuit (102) is electrically connected with the phase inverter (101); the first PWM output circuit (105) is electrically connected with the regulating circuit (102) and a first reference circuit (103); the second PWM output circuit (106) is connected with the regulating circuit (102) and a second reference circuit (104); one end of the first reference circuit (103) is connected with an external power source; the other end of the first reference circuit (103) is grounded through the second reference circuit (104). The single-input double-output pulse width modulation signal producing circuit has the beneficial effect that the microcontroller only uses one PWM port to control two switch elements of a same bridge arm and produce dead-time, so that the PWM port of the microcontroller can be effectively saved.