摘要:
An IC mounting method and its resulting structure, such as an IC card is provided. An IC card includes a metal plate formed with at least one hole, and an IC chip is located fixed in position in the hole with a filler material filling the gap between the hole and the IC chip. An interconnect pattern is provided on the plate with an electrically insulating film sandwiched therebetween, and the interconnect pattern is in electrical contact with a contact pad of the IC chip. Preferably, the surface of the IC chip on which the contact pad is provided is substantially flush with one surface of the plate. When an electrically insulating film is fixedly attached to a substrate having a hole, in which an IC chip is fixedly provided, by an adhesive agent, the material of the film is selected to be similar to the material of the adhesive agent. In this manner, a contact hole may be formed in registry with a contact pad of the IC chip in the insulating film by one etching step without formation of a stepped portion in the resulting contact hole. Moreover, a film to be later removed is first formed on a substrate, and after providing elements on the film and its supporting structure, a predetermined processing, such as exposure to light, is applied to the film to change its property, thereby causing the elements to be separated away from the film.
摘要:
A sound and music playback device includes: an output amplifier; a power supply circuit that supplies electric power to the output amplifier; and an output signal level judging circuit; wherein an output voltage value of the power supply circuit is changed based on a level of a sound and music signal to be outputted.
摘要:
An image processing apparatus divides data related to an image into bit-planes and performs a coding process on data of each of the bit-planes. The image processing apparatus includes a multi-layer generation part that divides codes obtained by the coding process into a plurality of layers sequentially from the codes corresponding to higher bit-planes such that the amount of the codes of each of the layers is equal to or less than a predetermined value. A code generation part generates coded data in units of the codes divided into the layers by the multi-layer generation part.
摘要:
An image decoder comprises a code decompression/decoding unit that decodes code data produced through compression and encoding of image data, a power supply state detection unit that detects a current state of a power supply of the image decoder, and a controller that controls the code decompression/decoding unit based on the current state of the power supply so as to reduce power consumption in performing decompression and decoding of the code data.
摘要:
An image processing apparatus and an image processing method are disclosed for generating coded data having a desired data size at a high speed. The image processing apparatus includes a coding part, two memories, a setting part and a data size adjustment part. The coding part partitions a wavelet coefficient of image data into bit-planes and generates coded data of the image data through entropy coding on the wavelet coefficient for each of the bit-planes. The data size adjustment part adjusts a size of the coded data such that the size falls within an acceptable range including the target size set by the setting part by sequentially discarding a portion of the coded data in a least significant order based on the size of the coded data portion corresponding to each of the bit-planes.
摘要:
A serial communication system is provided which performs serial communication between host and slave apparatus using half-duplex channel communication with a serial data signal generated by superimposing a data signal on a clock signal. The host apparatus transmits through a transmission path an identification signal generated by superimposing on the clock signal identification data for specifying a slave apparatus to be requested, after transmitting through the transmission path a preamble signal generated by superimposing successively repeated data on the clock signal.
摘要:
A group of pass transistors causes x.sub.i, x.sub.i-- B to pass therethrough when 1X indicates affirmation but not pass therethrough when 1X indicates negation, and causes x.sub.i-1, x.sub.i-1-- B to pass therethrough when 2X indicates affirmation but not pass therethrough when 2X indicates negation. In a switch-transistor arrangement portion, when each of 1X and 2X has a value indicating negation, a first electric potential appears at a first node, and a second electric potential appears at a second node. A positive-and-negative-responding pass-transistor group causes the value of the first node to pass therethrough when COMP has a value indicating negation, and causes the value of the second node to pass therethrough when COMP has a value indicating affirmation.
摘要:
A microprocessor to which additional instructions from outside of the microprocessor are added and an instructions addition method are provided. The microprocessor includes an unrewritable register and if an instruction decoder in the microprocessor decodes additional instructions which appoint or designate the unrewritable register as a destination register, the additional instructions are added to the microprocessor on the basis of the decoded signals of the additional instructions. The present microprocessor can execute instructions addition while maintaining the compatibility of software for the additional instructions to prepared instructions in the microprocessor.
摘要:
An image processing method generates TAG information based on inclusion information which indicates an existence of significant data in code blocks for each of sub-bands, according to JPEG2000 standard. The image processing method accepts the inclusion information of the code blocks in a predetermined sequence in units of code blocks amounting to a number which is smaller than a number of code blocks of sub-bands in all levels, and immediately generates and outputs TAG information corresponding to the accepted inclusion information.
摘要:
An apparatus for compressing an image, comprising: a coding unit configured to generate code data by encoding data derived from image data; a memory unit which stores truncation data items identified by respective data sequence numbers, wherein a truncation data item specifies a way in which code data is removed from the generated code data, such that the larger the data sequence number, the higher a quality of a reproduced image obtained by decoding the generated code data after the removal of code data, or such that the larger the data sequence number, the lower the quality of the reproduced image; and a rate control unit configured to identify a data sequence number of a truncation data item that provides a code data parameter substantially equal to a desired value, said code data parameter being responsive to an amount of code data removal.