摘要:
A decoder having an element decoding unit generating external information for input data, including an exponent position determining unit, when the external information output from the element decoding unit is input, of information excluding a sign bit from the external information, specifying an exponent that is a bit position where a value different from a sign bit first appears, a mantissa obtaining unit obtaining information of 1-bit or a plurality of bits in a position next to the exponent as a mantissa out of the external information, a storage unit storing the exponent and the mantissa and a restoring unit restoring the external information by reading the exponent and the mantissa stored in the storage unit, wherein the element decoding unit performs iteration decoding based on the restored external information is utilized.
摘要:
Disclosed is a transmission device which transmits a systematic code obtained by adding parity bits to information bits. When the code rate of the systematic code is a value in a specific range determined by the decoding characteristic in a case where dummy bits are not inserted, a dummy bit insertion portion inserts dummy bits into the information bits and shifts the decoding characteristic, so that the code rate assumes a value outside a specific range determined by the decoding characteristic after shifting. An encoding portion performs systematic encoding of the information bits into which the dummy bits are inserted, and deletes the dummy bits from the results of the encoding to generate a systematic code, and a rate matching portion, performs rate matching such that the size of the systematic code is equal to a size determined by the physical channel transmission rate, and transmits the systematic code.
摘要:
A decoder having an element decoding unit generating external information for input data, including an exponent position determining unit, when the external information output from the element decoding unit is input, of information excluding a sign bit from the external information, specifying an exponent that is a bit position where a value different from a sign bit first appears, a mantissa obtaining unit obtaining information of 1-bit or a plurality of bits in a position next to the exponent as a mantissa out of the external information, a storage unit storing the exponent and the mantissa and a restoring unit restoring the external information by reading the exponent and the mantissa stored in the storage unit, wherein the element decoding unit performs iteration decoding based on the restored external information is utilized.
摘要:
Disclosed is a transmission device which transmits a systematic code obtained by adding parity bits to information bits. When the code rate of the systematic code is a value in a specific range determined by the decoding characteristic in a case where dummy bits are not inserted, a dummy bit insertion portion inserts dummy bits into the information bits and shifts the decoding characteristic, so that the code rate assumes a value outside a specific range determined by the decoding characteristic after shifting. An encoding portion performs systematic encoding of the information bits into which the dummy bits are inserted, and deletes the dummy bits from the results of the encoding to generate a systematic code, and a rate matching portion, performs rate matching such that the size of the systematic code is equal to a size determined by the physical channel transmission rate, and transmits the systematic code.
摘要:
A sound-signal generating unit generates, when a positional relationship between a local information processing apparatus and a user is acquired, a sound signal that makes the user perceive a virtual sound source at a predetermined position in a three-dimensional space based on the acquired positional relationship.
摘要:
Between a display of a videophone apparatus and a cover thereof, there are disposed lenses 114, 116, 118 and a half mirror, having sufficiently small areas as compared to the surface areas of the display and the cover. The half mirror enables light from the display to transmit to the cover, and reflects light from the outside, so as to lead to a camera. The camera is disposed at a position at which the light reflected by the half mirror can be imaged. Lenses 114, 116 are disposed in opposite positions sandwiching the half mirror. Light from the display passes through lens 114, transmits through the half mirror, and further, passes through lens 116, so as to be led to the cover. Also, light from the cover passes through lens 116, and is reflected by the half mirror, and then passing through lens 118, so as to be led to the camera.
摘要:
The receiving apparatus retains a split signal, which is obtained by splitting a predetermined signal, in a split signal storing unit. When the receiving apparatus receives a retransmission signal from among split signals stored in the split signal storing unit, the receiving apparatus controls a split signal, for which an error checking result does not indicate an error, such that the split signal is not updated, but controls a split signal, for which the error checking result indicates an error, such that the split signal is updated to a signal created by combining the predetermined signal and the retransmission signal.
摘要:
Between a display of a videophone apparatus and a cover thereof, there are disposed lenses 114, 116, 118 and a half mirror, having sufficiently small areas as compared to the surface areas of the display and the cover. The half mirror enables light from the display to transmit to the cover, and reflects light from the outside, so as to lead to a camera. The camera is disposed at a position at which the light reflected by the half mirror can be imaged. Lenses 114, 116 are disposed in opposite positions sandwiching the half mirror. Light from the display passes through lens 114, transmits through the half mirror, and further, passes through lens 116, so as to be led to the cover. Also, light from the cover passes through lens 116, and is reflected by the half mirror, and then passing through lens 118, so as to be led to the camera.
摘要:
A receiver receives information necessary for receive processing of a data channel via a corresponding control channel and executes the receive processing of the data channel based on the information received via the control channel. In the receiver, whether the control channel of a receive frame F1 has an error is monitored. And if there is an error, the data channel before demodulation of this receive frame is stored, and if the control channel of a retransmission frame F2, which is received subsequently, is normal, the stored data channel and the data channel of the retransmission frame are demodulated using the normal control channel information (parameters) of this retransmission frame, the demodulation results are synthesized, and decoding processing is performed based on the synthesized data.
摘要:
An mobile radio apparatus includes a data division section configured to divide an input data into a plurality of block data of different sizes, an encoding section configured to encode each block data, a rate matching processing section configured to adjust a division size of each encoded block data to a rate matching size so as to fit to a communication channel size, and a rate matching calculation section configured to obtain a rate matching size for each block data according to a ratio of the division sizes of the block data.