摘要:
A data transmission system, permits data transmission without failure while ensuring a substantially constant picture quality or audio quality irrespective of the source of data. The data transmission system transmits data after conversion thereof into digital data and compression of the same. In the system, the distortion in data to be transmitted is measured, and the quantization step size is controlled according to the measured distortion to hold the distortion constant, thus permitting data transmission while maintaining constant quality of the transmitted data irrespective of the data source kind.
摘要:
In the recording/reproducing of digital audio signals, errors are detected and corrected by using two parity words, one arranged at the center of the block formed of data words and the arranged at one end of the block. The probability that uncorrectable error will be present in the center of the block is relatively high, so placing the parity word there prevents loss of the more valuable data. Maximum correctable burst errors are determined by the length of the block, so placing the other parity word on the end of the block lengthens it and improves burst error correction. The parity words are arranged as indicated before adding a cyclic redundancy check (CRC) code to the data signal and then modulation coding the signal before recording. During playback, the reproduced signal is demodulated and the CRC code used to detect errors for which error pointers are generated. The reproduced data is read into memories in accordance with generated addresses and the pointers prevent the writing in of words found to be in error, which error words are subsequently corrected if possible using parity codes originally encoded into the signals prior to recording.
摘要:
A transmission system which quantizes a data signal into quantized data and alternatively either transmits the quantized data while controlling a quantity of distortion to a constant value or transmits the quantized data while controlling a quantity of data generated to a constant value as a function of the quantized data which are alternatively stored in and read out from a first memory and a second memory.
摘要:
An information processing system, an information processing apparatus, an information processing method, and an information record medium that are controlled to generate an operation effect sound that differs for each user of a card upon an operation for electronic money are provided. A card 10 records user information 12, balance information 13, and audio data 14. The card 10 makes a settlement of electronic money with a vending machine 20 to buy a commodity. When the card 10 is presented to the vending machine 20, it reads the user information 12, the balance information 13, and the audio data 14 from the card 10 through wireless communications. The vending machine 20 makes a settlement on the basis of both information of the commodity that a user has selected and the balance information 13. As a result, the vending machine 20 provides the selected commodity to the user. On the other hand, with audio data 14, at a predetermined timing of the settlement, a predetermined sound is output. Audio data may be stored only in the vending machine 20 or both in the card 10 and in the vending machine 20. A sound that differs for each user and for each event is output.
摘要:
Changes of a user's emotion that occurs when content is reproduced and a user's surrounding environment that occurs when the content is reproduced are recorded as sensing meta data and content is reproduced in a reproducing mode corresponding to the recorded sensing meta data. Content supplied from a content providing section 11 is normally reproduced. A human body sensor 24 measures biological information of a user of content. An environmental sensor 25 measures a user's surrounding environment. A sensing meta data generating section 19 generates sensing meta data using information detected by at least one of the human body sensor 24 and the environmental sensor 25. A recording processing section 20 records the generated sensing meta data to a record medium 21. A reproducing processing section 23 reproduces sensing meta data. A reproducing control section 12 reproduces content in a reproducing mode that changes corresponding to the reproduced sensing meta data.
摘要:
Provided is a power control unit including a receiving unit that receives information about commercial power, and a control unit that controls use of power generated by private power generation and use of the commercial power in accordance with the information received by the receiving unit.
摘要:
A data communication apparatus capable of creating a new type of communication is provided. Motion information obtaining means 33 obtains information on the motion of an arbitrary apparatus. An other-party apparatus motion determination section 21 makes a determination as to the motion of the arbitrary apparatus on the basis of the information on the motion of the arbitrary apparatus, the information being obtained by the motion information obtaining means 33. A communication determination section 22 determines whether or not communication is to be performed with an arbitrary apparatus on the basis of the motion determination output by the other-party apparatus motion determination section 21. When it is determined by the communication determination section 22 that communication is to be performed, predetermined data communication is started with the arbitrary apparatus.
摘要:
Disclosed is an information display method whereby an information processing apparatus displays a map on a display screen such that a cursor is displayed at a position measured as the current position of a position indication object on the map. The method includes the steps of, when the moving speed of the position indication object is equal to or less than a threshold speed, scrolling the map on the display screen in accordance with the movement of the position indication object in a first display mode, and when the moving speed of the position indication object is greater than the threshold speed, fixing the map on the display screen in a second display mode or reducing the speed of scrolling the map on the display screen so that the scrolling speed is less than that in the first display mode.
摘要:
Program data and information associated with at least one consumer commodity that appears in a program of the program data are synchronously transmitted. The program data and the associated information are received, and the program is reproduced and displayed on a display. One of a plurality of displayed consumer commodities is selected, and at least part of information associated with the selected consumer commodity is extracted and displayed. The extracted information associated with the selected consumer commodity is stored and is accessible after the program is displayed.
摘要:
Data broadcast data, which is broadcast in data broadcasts, is constructed by disposing, for example, EMD (Electric Music Distribution) links required to acquire song data as actual broadcast data, which is broadcast in actual broadcasts by a transmitting device, the actual broadcast data is transmitted, and the data broadcast data wherein the EMD links for the song data in the actual broadcasts are disposed, is transmitted periodically during the transmission of the actual broadcast data. The actual broadcast data and the data broadcast data are received by a user terminal, and the EMD links disposed in the data broadcast data are stored whenever there is an input of an operation to attach a “bookmark”. Thus, audio data such as songs in programs broadcast can easily be acquired by radio.