Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for optimizing multimedia compression using plural encoders. SOLUTION: A multimedia stream is compressed in parallel by plural encoders, the compressed stream outputs of which are dynamically evaluated for merit. A best one of the compressed streams is transmitted, along with information regarding the particular compression algorithm that has been used, so that the receiver's decoder can decompress the stream for presentation. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To facilitate the efficient reception of each data stream by transmitting overhead information. SOLUTION: A base station transmits many data streams on many data channels (MLC). The MLCs are transmitted at different times and on different frequency sub-bands. The overhead information represents a time-frequency position of each MLC, and is sent as "composite" overhead information and "embedded" overhead information. The composite overhead information represents the time-frequency positions of all the MLCs and is periodically sent in each superframe. A radio device receives the composite overhead information, determines the time-frequency position of each MLC and receives each MLC at the represented time-frequency position. The embedded overhead information of each MLC represents the time-frequency position of an MLC in the next superframe and is transmitted together with a payload of the MLC in the current superframe. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
A multimedia data stream is partitioned into two or more parts based on importance, e.g., a first part might represent more significant bits in groups of bits representing pixel colors in a video frame, while a second part might represent the less significant bits in the groups. The more important part of the stream is amplified more than the less important part of the stream.
Abstract:
Video images in, e.g., a multimedia stream are scanned prior to compression for transmission to recognize symbols, such as graphics symbols and alpha-numeric characters. The types, positions, sizes, etc. of the symbols are recorded to render symbol information, and then the images are compressed with or without compressing the symbols, which may be removed from the images prior to compression if desired. The compressed video and symbol information are sent to a receiver, which decompresses the video, optionally transforms the symbols, and then inserts the symbols where indicated by the symbol information.
Abstract:
Digital multimedia includes intraframe information and interframe information. In addition to sending separate complete intraframes that are referenced by interframes, some interframes (“hybrid” frames) contain partial intraframe information, so that if a complete intraframe is lost, referencing interframes can obtain at least some intraframe information from the hybrid frames.
Abstract:
Method and apparatus for detecting cargo state in a delivery vehicle. A method is provided for determining a cargo state in a delivery vehicle. The method includes sensing a cargo state change, and determining whether or not the delivery vehicle is in motion. The method also includes storing the cargo state change if it is determined that the delivery vehicle is not in motion.
Abstract:
Técnicas para transmitir información de encabezamiento con el fin de facilitar una eficiente recepción de las corrientes de datos individuales. Una estación de base puede transmitir corrientes de datos múltiples en múltiples canales de datos (o MLC). Los MLC se pueden transmitir en tiempos diferentes y en sub-bandas de frecuencia diferentes. La ubicación de tiempo-frecuencia de cada MLC puede cambiar en el transcurso del tiempo. La información de encabezamiento indica la ubicación de tiempo-frecuencia de cada MLC y se puede enviar como información de encabezamiento "compuesta" y "encapsulada". La información de encabezamiento compuesta indica las ubicaciones de tiempo-frecuencia de todos los MLC y se envían periódicamente en cada súper-trama. Un dispositivo inalámbrico recibe la información de encabezamiento compuesta, determina la ubicación de tiempo-frecuencia de cada MLC de interés, y recibe cada MLC en la ubicación de tiempo-frecuencia indicada. La información de encabezamiento encapsulado para cada MLC indica la ubicación de tiempo-frecuencia para ese MLC en la próxima súper-trama y se transmite con la carga de pago del MLC en la súper-trama actual.
Abstract:
A multimedia data stream is partitioned into two or more parts based on importance, e.g., a first part might represent more significant bits in groups of bits representing pixel colors in a video frame, while a second part might represent the less significant bits in the groups. The more important part of the stream is amplified more than the less important part of the stream.