摘要:
A method and system for encrypting a video compressed with MPEG-4 FGS compression with minimal overhead is provided. The encryption system encrypts the video into independently encrypted segments that can be either a video packet or a video block. When the encryption system encrypts based on video packets, it encrypts the data to ensure that the encrypted data does not emulate any video packet delimiting markers. When the encryption system encrypts based on video blocks, it encrypts the coded bitstream for each video block independently, from the most significant bitplane to the least significant bitplane, using either a stream or a block cipher. After all the video blocks are independently encrypted, the encryption system partitions the encrypted data into video packets and adds a buffering bit, if necessary, to prevent emulation of video packet delimiting markers. The encryption system may generate an initialization vector for each independently encrypted segment.
摘要:
In one aspect of the instant invention, a method is provided for controlling a communications system in which VoIP traffic and data traffic are both provided. The method comprises receiving voice over internet protocol packets, accumulating a plurality of the voice over internet protocol packets, and transmitting the accumulated plurality of voice over internet protocol packets within a single time slot.
摘要:
The present invention provides a method of wireless communication with at least one mobile unit. The method includes providing information indicative of at least one channel and at least one channel capability associated with said at least one channel.
摘要:
A method for determining rise over thermal for a base station in a wireless communications system is provided. The method comprises receiving a first and second diversity signal, measuring the signal strength of the first and second diversity signals, and estimating the noise floor for the first and second diversity signals. The signal strength rise is determined for the first and second diversity signals based on the measured signal strength and estimated noise floor of the first and second diversity signals respectively. The rise over thermal is then determined based on the determined signal strength rise of the first and second diversity signals.
摘要:
The present invention provides a method for adhering dielectric layers to metals, in particular inert metals, using an adhesive layer comprising silicon-rich silicon nitride. Good adhesion is achieved at temperatures of less than 300° C., thereby facilitating the fabrication of semiconductor structures containing II–VI and III–V semiconductors.
摘要:
A power supply device consists of a rectifier and capacitor which share common elements facilitating the construction and application of the device to various types of substrates and, particularly, flexible substrates. Components of the device are fabricated from organic conductors.
摘要:
An emission system for presenting visual image is disclosed. The emissive system typically contains first electrodes (90) deposited over and in contact with a substrate. One or more conjugated organic buffer layers (40) are then deposited over and in contact with the first electrodes, and second electrodes (22) are subsequently deposited over the conjugated organic buffer layers. The conjugated organic buffer layers (40) regulate current flow between the first electrodes (90) and the second electrodes (22). Either before or after the deposition of each conjugated organic buffer layer (40), but before the deposition of the second electrodes (22), conjugated organic deposits (34, 36, 38) are ink-jet printed such that they are in contact with at least one conjugated organic buffer layer. The conjugated organic deposits (34, 36, 38) help to generate an indicator when a voltage stimulus is applied across the first electrodes (90) and the second electrodes (22). Depending on the material of the conjugated organic deposits (34, 36, 38), the indicator may be luminescence, fluorescence, conductivity, or the like. A voltage source is used for selectively applying the voltage stimulus across the first electrodes (90) and the second electrodes (22).
摘要:
FIG. 1 is a front, right and top perspective view of a bottle cap, showing my design. FIG. 2 is a rear, left and bottom perspective view thereof. FIG. 3 is a front elevation view thereof. FIG. 4 is a rear elevation view thereof. FIG. 5 is a left side elevation view thereof. FIG. 6 is a right side elevation view thereof. FIG. 7 is a top plan view thereof. FIG. 8 is a bottom plan view thereof; and, FIG. 9 is an enlarged view of detail 9 in FIG. 1. The broken lines depict portions of the bottle cap that form no part of the claimed design. The dot-dash broken lines in FIGS. 1 and 9 depict the boundaries of the enlargements that form no part of the claimed design.
摘要:
FIG. 1 is a front perspective view of a pet waterproof pad, showing my new design; FIG. 2 is a front elevation view thereof, the rear elevation view is identical; FIG. 3 is a left side elevation view thereof, the right side elevation view is identical; FIG. 4 is a top plan view thereof, the bottom plan view is identical; FIG. 5 is a partial enlarged view of FIG. 1; FIG. 6 is a partial enlarged view of FIG. 1; FIG. 7 is a partial enlarged view of FIG. 1; FIG. 8 is a partial enlarged view of FIG. 1; FIG. 9 is a partial enlarged view of FIG. 2; FIG. 10 is a partial enlarged view of FIG. 3; and, FIG. 11 is a partial enlarged view of FIG. 4. The broken lines in the drawings show portions of the pet waterproof pad which form no part of the claimed design. The dash-dot broken lines demarcate enlarged areas and form no part of the claimed design.
摘要:
Methods, systems, and devices for wireless communication are described for mutual information based polar code construction. A wireless device may receive a codeword over a wireless channel, the codeword encoded using a polar code. The wireless device may identify a set of bit locations of the polar code corresponding to information bits of an encoded information bit vector. The set of bit locations may be determined based at least in part on a reliability order of the bit locations of the polar code, and the reliability order may be determined based at least in part on a recursive model that includes at least one mutual information transfer function that is applied at each polarization stage of multiple polarization stages of the polar code. The wireless device may decode the received codeword to obtain the information bit vector at the set of bit locations.