摘要:
An electronic apparatus reads a digital data stream including a video signal and/or an audio signal outputted from an external apparatus according to a transmission clock different from a clock for the data stream, and outputs the video signal and/or audio signal without causing any discontinuity. The electronic apparatus includes a sample rate converter that rate-converts a predetermined volume of the audio signal in synchronization with a constant sampling clock, and changes a number of samples to be outputted, based on a data volume of an audio signal outputted by the electronic apparatus and a data volume of an audio signal transmitted from the external apparatus or transmittable from the external apparatus to the electronic apparatus.
摘要:
A functional module card and a host apparatus according to the present invention can constitute the digital broadcasting receiver apparatus. The functional module card includes a card controller and a tuner section. The tuner section inputs a digital broadcasting signal, generates a transport stream (referred to as a TS hereinafter) and a TS clock for transferring the TS, and directly transfers the TS and the TS clock to a decoder and descrambler of the host apparatus via a bus according to the TS clock. A data transfer method for transferring data between the card controller and the host controller of the host apparatus is a master-slave data transfer method in which the host controller operates as a master apparatus.
摘要:
An electronic apparatus reads a digital data stream including a video signal and/or an audio signal outputted from an external apparatus according to a transmission clock different from a clock for the data stream, and outputs the video signal and/or audio signal without causing any discontinuity. The electronic apparatus includes a sample rate converter that rate-converts a predetermined volume of the audio signal in synchronization with a constant sampling clock, and changes a number of samples to be outputted, based on a data volume of an audio signal outputted by the electronic apparatus and a data volume of an audio signal transmitted from the external apparatus or transmittable from the external apparatus to the electronic apparatus.
摘要:
A functional module card and a host apparatus according to the present invention can constitute the digital broadcasting receiver apparatus. The functional module card includes a card controller and a tuner section. The tuner section inputs a digital broadcasting signal, generates a transport stream (referred to as a TS hereinafter) and a TS clock for transferring the TS, and directly transfers the TS and the TS clock to a decoder and descrambler of the host apparatus via a bus according to the TS clock. A data transfer method for transferring data between the card controller and the host controller of the host apparatus is a master-slave data transfer method in which the host controller operates as a master apparatus.
摘要:
An electronic apparatus that transmits error information about setting of a block size to a host device without making a design of the host device complicated and a control method thereof, are provided. The electronic apparatus of the present invention has: an interface section that transmits/receives a command, a response and data to/from the host device and when the data is a predetermined length or more, executes multi-block transmission; a data buffer; and a storage section that stores information about a block size, wherein when the interface section receives a block size setting command transmitted from the host device and the block size is larger than a capacity of the data buffer, it transmits a response including error information about incapability of accepting the block size at the time which has a predetermined relation to the block size setting command.
摘要:
An electronic apparatus that transmits error information about setting of a block size to a host device includes an interface section that transmits and receives a command, a response and data to and from the host device. When the data is a predetermined length or more, the interface section executes multi-block transmission. Moreover, the electronic apparatus includes a data buffer, and a storage section that stores information about a block size. When the interface section receives a block size setting command transmitted from the host device and the block size is larger than a capacity of the data buffer, it transmits a response including error information about incapability of accepting the block size at the time which has a predetermined relation to the block size setting command.
摘要:
An IC card capable of a high-speed data transmission to/from a data transmission apparatus which is low in processing capability, is provided. The IC card of the present invention comprises: a controlling section which generates a data packet by adding management information including information regarding a data length of the data packet, and which divides the above-mentioned data packet to generate data blocks wherein a data length of the data block is designated from the data transmission apparatus; and a communicating section which sends an interrupt signal to the above-mentioned data transmission apparatus when the above-mentioned data block which includes the above-mentioned management information is to be sent, and does not send the above-mentioned interrupt signal to the above-mentioned data transmission apparatus when a data block which does not include the above-mentioned management information is to be sent, in a case where a plurality of the above-mentioned data blocks which compose the single above-mentioned data packet are sent to the above-mentioned data transmission apparatus.
摘要:
An integrated circuit (IC) card capable of a high-speed data transmission to/from a data transmission apparatus having low processing capability. A controlling section generates a data packet by adding management information including information regarding a data length of the data packet, and divides the data packet to generate data blocks. The data length of the data block is designated from the data transmission apparatus. When the data blocks which compose the single data packet are sent to the transmission apparatus a communicating section sends an interrupt signal to the data transmission apparatus if the data block including the management information is to be sent, and does not send the interrupt signal to the data transmission apparatus if a data block not including the management information is to be sent.
摘要:
An access device 100 includes an access speed information part 112 for informing an access speed required for data recording by the access device 100 to a nonvolatile memory device 200. The nonvolatile memory device includes an access condition determination part 212 for determining an access condition required for meeting the informed access speed and an access area determination unit 213 for determining an access area according to the determined access condition. The access device 100 informs the required access speed to the nonvolatile memory device 200 in advance so that the access condition determination part 212 and the access area determination part 213 in the nonvolatile memory device 200 realize data recording which meets the access speed informed in advance upon the data recording. Thus, it is possible to access all the nonvolatile memory devices at a desired speed regardless of difference in characteristics of the recording speed of each of the nonvolatile memory devices.
摘要:
An access device 100 includes an access speed information part 112 for informing an access speed required for data recording by the access device 100 to a nonvolatile memory device 200. The nonvolatile memory device includes an access condition determination part 212 for determining an access condition required for meeting the informed access speed and an access area determination unit 213 for determining an access area according to the determined access condition. The access device 100 informs the required access speed to the nonvolatile memory device 200 in advance so that the access condition determination part 212 and the access area determination part 213 in the nonvolatile memory device 200 realize data recording which meets the access speed informed in advance upon the data recording. Thus, it is possible to access all the nonvolatile memory devices at a desired speed regardless of difference in characteristics of the recording speed of each of the nonvolatile memory devices.