Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Mikihiko Yamada

Shouichi Gotoh

Norihiko Mizobata

Hirotoshi Uehara

Satoshi Okamoto

Taku Arakawa

Kouichi Kita

A processor detects a data error in the TS packet by utilizing a value of 'adaptation_field_control' and a value of 'adaptation_field_length' included in the TS packet of a transport stream. A TS packet filter of the processor deletes the relevant TS packet in the transport stream if the data error in the TS packet is detected, and outputs the relevant TS packet to a PID filter if the data error in the TS packet is not detected. The PID filter detects PCR (Program Time Clock) from the TS packet. In a period of time when the PCR does not arrive at a clock reproducer, a frequency of a reference clock when the last PCR arrived is maintained, and then, when the PCR arrives at the clock reproducer, a value of STC (System Time Clock) is set and the frequency of the reference clock CK is controlled by the clock reproducer such that the value of the STC becomes equal to a value of the new PCR.

Transport stream processing device and transport stream processing method

A stream data processor suitable for various applications and which performs the process of various types of stream inputs in packet data. In the stream data processor which decides individually and sequentially whether packets forming an input stream are to be processed by a predetermined process, after stream data is temporarily stored packet by packet, packet selection and data processing based on a packet identifier present in any bit position are possible.

Stream data processing device, stream data processing method, program, and medium

In an effective display area, an additional information recognizing partrecognizes a standard of a broadcast wave, refers to a ROMand selects a target value, and provides an internal clock of a video data reading partand an internal clock of an OSD data reading partwith the target value. At a retrace internal, on the other hand, the additional information recognizing partnotifies an additional information synthetic position deciding partof the standard of the broadcast wave. The additional information synthetic position deciding partselects from a ROMa target value for reading the additional information applicable to the notified standard, and outputs the target value to an additional information reading partsWhen the standard of the broadcast wave is changed, target values corresponding to the changes are responsively selected from the ROMand the ROM

Television signal processor that is operable to generate a television signal from broadcast waves with a plurality of different broadcast standards

In a packet data processing determination apparatus (DBA) for respectively and sequentially determining a plurality of packet data (P) composing an inputted transport stream (TS), a packet data storage section () stores the packet data (P) for a predetermined time period in the order in which they came. A stored packet data identifying section () reads identification information (PIDe) from the stored packet data (P). A target packet data determining section () compares the read identification information (PIDe) with predetermined process information (PIDd) to determine whether the packet data (P) is to be processed.

Packet data processing determination apparatus

In a multi-format transport stream decoder that performs a desired process on first transport streams of different formats to generate a second transport stream, a process request information input unit (APR) is supplied with process target packet data (Pi) and process request information (ScW) indicative of process details. A stream identification information providing unit (TSRi) provides stream identification information (TSID). A packet data retaining and identifying unit (DBA) retains each pieces of first packet data (Pi), and compares the stream identification information (TSIDe) and packet data identification information (PIDe) of the first packet data (Pi) with the process request information (ScW) to determine whether the information is to be processed.

Multi-format transport stream decoder

With a temporary operating unit being operating, a user provides a boot timing using a boot timing instructing unit. This causes a CPU to compute a boot preparation timing based on the boot timing, and store the boot timing and boot preparation timing to a boot timing memory. At this time, a timer begins a time-keeping operation. After that, the user turns off the power to the temporary operating unit. A boot preparation instructing unit determines whether or not the time being measured by the timer coincides with the boot preparation timing stored in the boot timing memory. When the time measured by the timer coincides with the boot preparation timing stored in the boot timing memory, the boot preparation instructing unit provides the CPU with a boot preparation instruction. This turns on the power to the temporary operating unit, and the CPU performs a boot preparation.

Boot time reducing device including boot preparation instructing unit

In an effective display area, an additional information recognizing partrecognizes a standard of a broadcast wave, refers to a ROMand selects a target value, and provides an internal clock of a video data reading partand an internal clock of an OSD data reading partwith the target value. At a retrace interval, on the other hand, the additional information recognizing partnotifies an additional information synthetic position deciding partof the standard of the broadcast wave. The additional information synthetic position deciding partselects from a ROMa target value for reading the additional information applicable to the notified standard, and outputs the target value to an additional information reading partsWhen the standard of the broadcast wave is changed, target values corresponding to the changes are responsively selected from the ROMand the ROM

Television signal processor that is operable to generate a television signal broadcast waves with a plurality of different broadcast standards

A stream conversion apparatus receives an MPEG2 transport stream as an input stream . To each packet contained in this stream, a time stamp assignment section assigns the input time of that packet as a time stamp. A packet reduction section deletes NULL packets which appear in the stream with a predetermined repetition pattern. Based on a proportions of the NULL packet in the stream, a time stamp replacement section replaces the time stamp assigned to the packets which have not been deleted by the packet reduction section . The packets which have under gone the selective time stamp replacement are temporarily stored in the buffer , and outputted by the packet reading section and the output section , such that each packet is outputted at a time indicated by the time stamp assigned to that packet.

Apparatus and method for digital stream conversion

There have been a problem that if the capacity of a receiving buffer is small, data cannot be reliably received and another problem that the rate of detection of transmission errors caused by influence of noise is low. The IC card connector comprises a receiving buffer status flag ( ) set up when a receiving buffer ( ) cannot hold any more data, an overrun inspecting section ( ) for detecting reception of another data while the receiving buffer status flag ( ) is set up, and a resending request signal generating section ( ) for requesting an IC card to resend the received data if the overrun inspecting section ( ) detects overrun. If a receiving buffer ( ) receives another data though the receiving buffer ( ) cannot hold any more data, the IC card is requested to resend the data, and the same data is received again.

IC card reader and method

In an effective display area, an additional information recognizing part,recognizes a standard of a broadcast wave, refers to a ROM,and selects a target value, and provides an internal clock of a video data reading part,and an internal clock of an OSD data reading part,with the target value. At a retrace interval, on the other hand, the additional information recognizing part,notifies an additional information synthetic position deciding part,of the standard of the broadcast wave. The additional information synthetic position deciding part,selects from a ROM,a target value for reading the additional information applicable to the notified standard, and outputs the target value to an additional information reading parts,. When the standard of the broadcast wave is changed, target values corresponding to the changes are responsively selected from the ROM,and the ROM

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Ibaraki, Japan

Mikihiko Yamada