Abstract: A headgear assembly includes a solar power collecting unit mounted on a headgear member for converting solar power into electrical energy, and a power supplying unit having a rechargeable battery set disposed in a housing, connected electrically and wiredly to the solar power collecting unit so as to be charged by the electrical energy therefrom, and a power switch mounted on the housing for controlling electrical connection between a power output port on the housing and the rechargeable battery set so as to permit supply of electrical power from the rechargeable battery set to a load connected electrically to the power output port when in an ON state.

Abstract: A power supply assembly includes a case body, a rechargeable battery set disposed in an inner receiving space in the case body, a charging mode selecting unit operable so as to select one of electrical energy converted from solar power by a solar power collecting plate, DC power from an external DC power source, and DC power obtained by converting AC power from an external AC power source to charge the rechargeable battery sets and a power output selecting unit operable so as to output one of the electrical power from the rechargeable battery set and AC power obtained by converting the electrical power from the rechargeable battery set at a corresponding one of AC and DC output ports.

Abstract: A toy vehicle includes axles disposed rotatably on a base plate, and wheels mounted respectively on ends of the axles. A drive unit is mounted on the base plate and includes a first gear sleeved fixedly on a motor shaft of a motor and meshing with a second gear sleeved fixedly on one axle. A solar power collecting plate is mounted on the vehicle body for converting solar power into electrical energy that is used to charge a rechargeable battery set mounted on the base plate. A power switch is mounted on the base plate for controlling electrical connection between the rechargeable battery set and the motor so as to permit supply of electrical power from the rechargeable battery set to the motor when in an ON state.

Abstract: A clothing assembly includes a solar power collecting unit mounted on a garment for converting solar power into electrical energy, and a power supplying unit having a rechargeable battery set disposed in a housing, connected electrically and wiredly to the solar power collecting unit so as to be charged by the electrical energy therefrom, and a power switch mounted on the housing for controlling electrical connection between a power output port on the housing and the rechargeable battery set so as to permit supply of electrical power from the rechargeable battery set to a load connected electrically to the power output port when in an ON state.

Abstract: A movable incinerator comprises: a first combustion chamber, a material feeder, a second combustion chamber behind the first combustion chamber, a dust collector behind the second combustion chamber, a wind blower behind the dust collector, an air cleaner behind the wind blower, a hydrogen generator, a power generator and a vehicle. The first combustion chamber and second combustion chamber uses hydrogen and oxygen as energy source and thus the movable incinerator is suitable for environmental protection. The efficiency for burning waster materials is increased. Especially, the movable incinerator has a very small size so that it can be installed on the vehicle to be transferred to a desired place for burning the polluted waste materials so as to avoid the spreading of diseases.

Abstract: An engine device for an oxyhydrogen vehicle includes an oxyhydrogen generator for electrolytically converting an electrolyte into oxyhydrogen gas, a fuel tank for storing combustible fuel, a first pipe unit connected to the oxydrogen generator, a second pipe unit connected to the fuel tank, and an engine unit. The engine unit includes a cylinder block, an intake manifold, and fuel injectors. The intake manifold is connected to the cylinder block, is provided with passages, and is further connected to the first pipe unit such that the oxyhydrogen gas generated by the oxyhydrogen generator is fed into the passages. The fuel injectors are connected to the intake manifold, are further connected to the second pipe unit, and serve to inject the combustible fuel in the fuel tank into the passages.

Abstract: A system includes: an electrolytic cell for electrolytically converting water into a oxyhydrogen gas, the electrolytic cell having a gas outlet port; a fuel tank defining a fuel chamber therein and adapted to store hydrocarbon fuel in the fuel chamber in such a manner that the fuel chamber is divided by a body of the hydrocarbon fuel in the fuel tank into a liquid fuel-filled portion and a liquid fuel-free portion above the liquid fuel-filled portion, the fuel tank having upper and lower inlet ports; and a gas distributing unit including a control valve connected to the gas outlet port of the electrolytic cell and the upper and lower inlet ports of the fuel tank so as to direct first and second streams of the oxyhydrogen gas into the liquid fuel-free portion and the liquid fuel-filled portion of the fuel chamber, respectively.

Abstract: A system includes: an electrolytic cell for electrolytically converting water into a oxyhydrogen gas, the electrolytic cell having a gas outlet port; a fuel tank defining a fuel chamber therein and adapted to store hydrocarbon fuel in the fuel chamber in such a manner that the fuel chamber is divided by a body of the hydrocarbon fuel in the fuel tank into a liquid fuel-filled portion and a liquid fuel-free portion above the liquid fuel-filled portion, the fuel tank having upper and lower inlet ports; and a gas distributing unit including a control valve connected to the gas outlet port of the electrolytic cell and the upper and lower inlet ports of the fuel tank so as to direct first and second streams of the oxyhydrogen gas into the liquid fuel-free portion and the liquid fuel-filled portion of the fuel chamber, respectively.

Abstract: A solar-powered oxyhydrogen generating system includes an electric oxyhydrogen generator and a solar-power generator. The electric oxyhydrogen generator includes an electrolysis tank for receiving water, a plurality of electrodes extending into the electrolysis tank so as to be immersed in the water, and a gas outlet in spatial communication with the electrolysis tank. The solar-power generator collects solar energy and converts the solar energy thus collected into electrical energy. The solar-power generator is connected to the electric oxyhydrogen generator for supplying electricity to the electrodes of the electric oxyhydrogen generator so that oxyhydrogen gas is generated in the electrolysis tank by virtue of hydrolysis of the water received in the electrolysis tank. The oxyhydrogen gas flows out of the electrolysis tank via the gas outlet.

Abstract: A decoding system for eight-to-fourteen modulation or eight-to-sixteen modulation (EFM/ESM), which has an analog to digital converter (ADC), an adaptive equalizer and a Viterbi decoder. The ADC receives an analog signal with an EFM or ESM feature, and converts the analog signal into a digital signal with the EFM or ESM feature. The adaptive equalizer converts the EFM or ESM digital signal into a first signal with a minimum phase feature. The Viterbi decoder receives the first signal and generates a decoding signal in accordance with a Viterbi algorithm and a channel model, and the Viterbi decoder discards nonexistent paths in accordance with the EFM or ESM feature when computing branch metric of a branch or a node.

Abstract: A digital frequency/phase recovery circuit includes a comparator with hysteresis, a counter, a frequency determiner, a multi-phase clock generator, a transition detector, a phase adjuster, and a multiplexer. The comparator with hysteresis receives the input signal and generates a comparison signal. The counter receives the comparison signal, calculates the pulse number of the comparison signal in one period, and outputs a pulse value. The frequency determiner receives the pulse value, calculates the frequency of the input signal, and generates a frequency value. The multi-phase clock generator receives the frequency value and generates multi-phase reference clocks according to the frequency value. The transition detector receives the comparison signal and generates a transition signal.

Abstract: A method for grinding lens is provided in the invention. First, a lens which has an optical surface and a surface-to-be-grinded is placed on a polishing pad. Next, cover up the lens with a fluid guiding tube wherein the fluid guiding tube has a fluid inlet and a fluid outlet with the fluid outlet being situated at the top of the polishing pad for accommodating the lens. After that, a fluid is introduced into the fluid guiding tube through the fluid inlet and is discharged from the fluid outlet, and the flow of the fluid follows the normal direction of the optical surface and applies force evenly thereon. Last, the polishing pad is moved along with the tangent line of its surface for the surface-to-be-grinded to be grinded.

Abstract: A method for grinding lens is provided in the invention. First, a lens which has an optical surface and a surface-to-be-grinded is placed on a polishing pad. Next, cover up the lens with a fluid guiding tube wherein the fluid guiding tube has a fluid inlet and a fluid outlet with the fluid outlet being situated at the top of the polishing pad for accommodating the lens. After that, a fluid is introduced into the fluid guiding tube through the fluid inlet and is discharged from the fluid outlet, and the flow of the fluid follows the normal direction of the optical surface and applies force evenly thereon. Last, the polishing pad is moved along with the tangent line of its surface for the surface-to-be-grinded to be grinded.

Abstract: A method of acquiring a transmitted pseudo noise (PN) code c(t) from a received signal r(t) that is data modulated. The method includes, for a BPSK modulated signal, multiplying the received signal r(t) by cos(&ohgr;0t) and sin(&ohgr;0t), respectively to produce in-phase and quadrature (I-Q) down converted signals. Then multiplying the I-Q down converted signals by the PN code c(t), having a second PN code phase, to produce f(t) and g(t) respectively. Thereafter, summing separate contiguous portions of f(t) and g(t) and multiplying the summed portions of f(t) and g(t) by a matrix. The matrix represents data patterns within an interval MTc that spans the separate contiguous portions of f(t) and g(t). Lastly, the results of the matrix multiplication are compared to a threshold value to determine if the first PN code phase is equal to the second PN code phase.

Abstract: A flame adjusting device includes a tank for receiving a fluid and includes an upper portion and a lower portion coupled to a coupler with hoses. The coupler is coupled to a gas generator. A control device is disposed between the coupler and an upper hose and is used for controlling the gas to flow through the hoses and to adjust the gas flowing out of the tank. The gas is a gaseous fuel and is supplied to a facility for generating a flame. The temperature generated by the flame may thus also be adjusted.

Abstract: A low jitter fractional divider with low circuit speed constraint is disclosed, which lowers the frequency of a high frequency clock signal to perform a fraction division in the condition of low frequency. A compensation circuit, which has an adjust buffer and a down-counter, is provided for adjusting the output clock signal of the fractional divider to have a jitter substantially equal to the jitter occurred in high frequency, such that a low jitter can be achieved without being limited by the circuit speed.

Abstract: A gas generator includes a housing for receiving an electrolyte and has an outlet duct for collecting the gas. A number of cells are disposed in the housing for forming a number of spaces between the cells. A tube and a pipe are coupled together by a conduit and are engaged through the cells and each has a number of holes communicating with the spaces for allowing the electrolyte to be drawn out of the housing to a cool device and for allowing the electrolyte to be circulate into the housing via the pipe. An indicator is used for indicating the level of the electrolyte.

Abstract: A differentially matched filter for spread spectrum or code division multiple access communication systems comprises a delay line, a multiplication stage, two adders, and an additional delay element. In one embodiment, the delay line comprises elements of delay T with taps therebetween connected to respective elements of the multiplication stage. In another embodiment, the delay line comprises elements of delay T/M with taps after each Mth element connected to respective elements of the multiplication stage. The multiplication stage is connected to a first adder connected in turn to a first input of a second adder. The output of the second adder is the output of the filter and is also connected through the additional delay element to a second input of the second adder, to produce an output sequence.

Abstract: A matrix multiplier for performing a Fast Walsh Transform (FWT) is disclosed, based on Good's factorization of the FWT. The matrix multiplier has a plurality of N inputs for receiving N input signals. A first plurality of multiplexers is provided, which includes a first group of n multiplexers, where n=pth root of N, and a second group of each other multiplexer. Each multiplexer of the first and second groups, has first and second inputs. The first input is connected to a corresponding input of the matrix multiplier for receiving one of the N input signals. A plurality of (N/2) adder/subtractor units are connected to the multiplexers of the first group. A plurality of flip-flop circuits are provided, each being connected to one of the adder/subtractor units. A second plurality of multiplexers is provided. Each multiplexer of the second plurality is connected to a first group of at least two of the flip-flop circuits.

Abstract: A Fast Walsh Transform (FWT) processor is disclosed, based on Good's factorization, which reduces the number of adder/subtractor units to (N/2), where N is the dimension of the FWT. The process time is equal to 2p clock cycles, where p=the 2's power of N. The clock period is determined by the delay times of the processor's internal devices (multiplexers, adder/subtractors, flip-flops), and can be minimized by using high speed complementary metal oxide semi-conductor (CMOS), or equivalent. The improvements in speed, and simplicity of implementation disclosed herein, offer performance and cost benefits in the field of digital cordless telephone technology.