Abstract: To provide a method of fabricating a polyurethane foam with micro pores, and a polishing pad therefrom, the method including steps of (a) adding a nonionic surfactant into at least one of a first ingredient including an isocyanate group-containing compound and a second ingredient including an active hydrogen group-containing compound, (b) agitating and mixing the mixture of the first ingredient and the second ingredient while adding a non-reactive gas thereto, (c) discharging the mixture out of a container at a predetermined rate, and (d) injecting the discharged mixture into a mold so as to form a mold body into a predetermined shape.

Abstract: A character-recognition system provided in a digital mobile communication terminal, comprises a display, a touch panel for generating pressure signals in response to the pressures applied by the characters written on its surface a touch panel drive for generating coordinate data and touch panel state data from the pressure signals, a character data base for storing character data consisting of shapes and stroke data of the characters, a character-recognition for generating the addresses of the precise character data retrieved from the character data base by recognizing the data of the written characters, a character code storage for storing the character codes corresponding to the character data stored in the character data base, and a controller for delivering the stroke data of the written characters calculated from the coordinate data and touch panel state data to the character-recognition means, wherein the controller retrieves the character codes from the character code storage corresponding to the addre

Abstract: A finite impulse response filter and its filtering method are disclosed including a first delay portion for delaying input data, a second delay portion for receiving a final delay output from the first delay portion and delaying it, a first ROM bank having a plurality of ROMs for storing filter state values, a second ROM bank having a plurality of ROMs for storing filter state values, a first address generator for generating data as a first address, a second address generator for generating data as a second address, a first multiplexer for sequentially multiplexing the filter state values output from the ROMs of the first ROM bank, a second multiplexer for sequentially multiplexing the filter state values output from the ROMs of the second ROM bank, and an adder for summing the outputs of the first and second multiplexers and outputting the result as filter output data.

Abstract: A digital complex correlator for a band-spread communication system having a variable correlation length wherein first and second channel input data are multiplied by first and second channel reference data in a multiplier to produce multiplication data. The multiplication data is then accumulated in an accumulator and the outputs from the accumulator are applied to an adder and squaring circuit via a correlation length control circuit.