A cosine function is graphed starting at (0,1). Mark the x-axis 90, 180, 270, and 360 for degrees or their values in radians (pi/2, pi, 3pi/2, 2pi). Since sine relates the ratio of x to the radius of the triangle formed on the unit circle, at 90 (pi/2) the value of ...
The circuit utilizes a programmable memory in which values corresponding to the sine and cosine functions are stored. In the preferred form, the circuit utilizes binary number electrical signals of 10 bits. The most significant bit of the polar coordinate angle is found directly from the binary ...
;SOLUTION: The difference data of polygonal-line approximated sine and cosine functions are stored in difference data storing sections 20x and 20y. The difference data are successively read out from the sections 20x and 20y at the timing indicated from a difference data output control section 30 ...
Conventionally, a sine window coefficient or a Kaiser-Bessel window coefficient used in an audio codec MPEG-4 AAC/BSAC/TwinVQ was used as a window coefficient. However, a window coefficient used in the present embodiment is a value other than 0. In operation 30, the windowing operation may ...
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A digital to analog resolver converter uses a digital to analog converter to convert a part of the digital input to a corresponding analog angle value. This analog angle value is applied to sine and cosine function generators which use the equations of chords to approximate the value of the ...
CONSTITUTION:This discrete consine transforming unit is provided with a 1st storage means 6a using bit values of the same digit in N data of even-numbered order among 2N input data as addresses and storing the sum of products data between the bit values and the components of the ...
DISCRETE CONSINE TRANSFORMING CIRCUIT, INVERSE DISCRETE CONSINE TRANSFORMING CIRCUIT, MPEG VIDEO CODER, AND MPEG VIDEO DECODERPURPOSE: To provide the IDCT(inverse discrete cosine transforming) circuit which can operate at high speed and is small in hardware scale. CONSTITUTION: The IDCT circuit 1 ...
PURPOSE:To transform display coordinates of a radar, etc., at high speed from orthogonal coordinates to polar coordinates by processing the synchronizing signal and video signal of the orthogonal coordinates with a counter, a sine-wave and cosine-wave generator, a multiplier, a memory, etc. ...
FIELD: computers, can be implemented in automatics and information-measurement equipment engineering.;SUBSTANCE: device has sine-cosine transformer indicators, commutator, integrators, threshold elements, element 4AND-not, block for launching and stopping integrators, functional temperature of relation of vol...