摘要:
The invention described herein provides a video analysis tool to assist a computer programmer working on a program that effects video data. The tool may be integrated with program code. When enacted, the tool obtains statistical information related to the video data and information corresponding to functions of the code. The code may be responsible for encoding, transcoding, and/or decoding video data, for example. The tool is integrated with a video decoder to allow the information to be output with raw video data. The present invention is particularly useful for developing, debugging and analyzing programs responsible for encoding, transcoding, and/or decoding video data, such as video data compressed according to an MPEG standard.
摘要:
The invention described herein provides a video analysis tool to assist a computer programmer working on a program that effects video data. The tool may be integrated with program code. When enacted, the tool obtains statistical information related to the video data and information corresponding to functions of the code. The code may be responsible for encoding, transcoding, and/or decoding video data, for example. The tool is integrated with a video decoder to allow the information to be output with raw video data. The present invention is particularly useful for developing, debugging and analyzing programs responsible for encoding, transcoding, and/or decoding video data, such as video data compressed according to an MPEG standard.
摘要:
The invention described herein provides a video analysis tool to assist a computer programmer working on a program that effects video data. The tool may be integrated with program code. When enacted, the tool obtains statistical information related to the video data and information corresponding to functions of the code. The code may be responsible for encoding, transcoding, and/or decoding video data, for example. The tool is integrated with a video decoder to allow the information to be output with raw video data. The present invention is particularly useful for developing, debugging and analyzing programs responsible for encoding, transcoding, and/or decoding video data, such as video data compressed according to an MPEG standard.
摘要:
The invention described herein improves and expedites compressed video data delivery by providing systems and methods for transcoding and pass through on a sub-picture level. For example, in MPEG embodiments described herein, transcoding and compressed video data pass through may occur on a macroblock or slice level. This permits portions of a picture that need no rate reduction to be passed through without transcoding. The invention may also implement pass through on a picture by picture basis. Accordingly, the invention may determine transcoding or pass through for each picture or picture subregion. Thus, systems and methods described herein provide flexible compressed video data transcoding and pass through, as determined by varying bit rate demands of compressed video data transmission.
摘要:
According to the present invention, methods and apparatus for performing efficient inverse transform operations are provided. Zero patterns are identified in a block of transform coefficients to derive zero pattern information. Using the zero pattern information, inverse transform operations are performed on a subset of the columns of the block of transform coefficients. Zero patterns can optionally be identified in the resulting block. One-dimensional inverse transform operations are then performed on the rows of the resulting block to complete the inverse transform. In another example, one-dimensional inverse transform operations can be performed first on the rows and then on the columns.
摘要:
A method and RF SIM card communication system using a tag recognition to control the RF communication range, a tag for providing data information is installed on a mobile communication terminal equipped with an RF SIM card, a tag reader module for reading out and transmitting the data information is installed on an RF card reader device, setting a card reading condition for the card reader device as: under the condition that the tag reader module reads out the tag data information, the RF card reader module, based on the data information of the tag, establishes wireless communication link with and transfers data to the RF SIM card in the mobile terminal. The present invention is not affected by the shielding effect of the mobile communication terminal, thereby avoids the cumbersome calibration process for the RF SIM card transceiver power and receiver sensitivity in existing technologies, this both brings convenience to the users, and further facilitates of widespread use of RF SIM cards.
摘要:
A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.
摘要:
A radio frequency communication system, method, and device operate in the VHF, UHF, or SHF range, where a controller controls the radio-frequency communication range provided by the VHF, UHF, or SHF radiation.
摘要:
A radio frequency (RF) IC card device with very high frequency comprises an IC device (102), a radio frequency interface device (103), an RF antenna (104), an IC card interface (106) and an RF interface (107). Particularly, said RF interface device (103) and the RF interface (107) operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna (104) is directly integrated on an IC card (100); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface (107).
摘要:
A radio frequency (RF) IC card device with very high frequency comprises an IC device (102), a radio frequency interface device (103), an RF antenna (104), an IC card interface (106) and an RF interface (107). Particularly, said RF interface device (103) and the RF interface (107) operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna (104) is directly integrated on an IC card (100); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface (107).