摘要:
Local stations can generate their station broadcast logs based on a master broadcast log. In some cases, local stations are allowed to edit some positions, or slots, in their local logs, so that the local logs do not match the master log. This can create complexity when voice tracks for empty voice track slots are provided to the local stations, because voice tracks often reference the media in slots on either side of the empty voice track slots. An improved voice track editor indicates whether media items adjacent to an empty voice track slot in a master log match corresponding items in a station log.
摘要:
Segmentation messages indicative of locations of upcoming events, such as the start and end of programs and program portions, and/or rights related to the programs and program portions, are used by cable systems and the like to store programs and program portions for later retrieval and transmission to customers on request. Storage, retrieval and management of programming is thereby facilitated. Methods and systems are disclosed.
摘要:
A method of converting legacy HFC CATV cable systems, which transmit data over the optical fiber portion of the system using the optical counterpart of analog RF waveforms, such as RF QAM waveforms transduced to corresponding optical QAM waveforms, to improved HFC CATV systems that transmit data over the optical fiber using optical fiber optimized protocols, such as Ethernet frames and other optical fiber optimized digital transport protocols. According to the method, most aspects of the legacy HFC CATV system may be retained, however at the CATV head end, the optical fiber transmitter system is replaced by an improved system that extracts the underlying symbols from legacy waveforms, packages these symbols into optical fiber optimized packets, and transmits downstream. The legacy optical fiber nodes are replaced with improved nodes capable of receiving the packets and remodulating the symbols into RF waveforms suitable for injection into the system's CATV cable.
摘要:
Transport of differential signals is provided. In one aspect, a telecommunications system includes a first unit and a second unit. The first unit can calculate a differential signal from an original signal. The differential signal can represent a change in signal levels between constant time intervals in the original signal. The second unit can estimate the original signal from the differential signal received from the first unit over a communication medium.
摘要:
Segmentation messages indicative of locations of upcoming events, such as the start and end of programs and program portions, and/or rights related to the programs and program portions, are used by cable systems and the like to store programs and program portions for later retrieval and transmission to customers on request. Storage, retrieval and management of programming is thereby facilitated. Methods and systems are disclosed.
摘要:
A translator includes: an input configured to receive a bit stream having a plurality of digitally encoded contents and control information; processing circuitry configured to select one of the digitally encoded contents, to use the selected digitally encoded content to produce an analog modulated signal, to use the digitally encoded contents to produce a digitally modulated signal, and to combine the analog modulated signal and the digitally modulated signal to produce a hybrid signal; and an output configured to output the hybrid signal. A method performed by the radio signal translator is also provided.
摘要:
An electronic device for point-to-multipoint transmission of a digital signal over a radio communication network comprises a transmitter-receiver configured to receive a radio-frequency input digital signal and generate therefrom a baseband digital signal and comprises a digital signal processor. The digital signal processor comprises a receiving module, an input buffer, an audio decoder module and an output buffer. The transmitter-receiver is further configured to receive the duplicated baseband output digital signal and generate therefrom a radio-frequency output digital signal.The transmitter-receiver is configured to receive the radio-frequency input digital signal on the basis of Bluetooth® specifications and transmit the radio-frequency output digital signal on the basis of Bluetooth® specifications, and the microcontroller is configured to realize a unidirectional asynchronous packet data link.There is further described a system for point-to-multipoint radio transmission comprising a plurality of electronic devices for point-to-multipoint transmission of a digital signal over a radio communication network.
摘要:
A method of operating a receiving device coupled to a display device at a user location is disclosed, comprising programming the receiving device to record a program and recording the program based, at least in part, on at least one segmentation message in a program stream. In one example, the receiving device, which may be a set-top terminal, for example, is coupled to a display device, such as a television, at a user location. Devices are disclosed, as well.
摘要:
Transport of differential signals is provided. In one aspect, a telecommunications system includes a first unit and a second unit. The first unit can calculate a differential signal from an original signal. The differential signal can represent a change in signal levels between constant time intervals in the original signal. The second unit can estimate the original signal from the differential signal received from the first unit over a communication medium.
摘要:
Provided is an apparatus and method for analyzing identification (ID) signals by converting radio frequency (RF) signals which are transmitted with an ID signal added thereto by a transmitting part, e.g., a plurality of transmitters or repeaters, into signals of a desired band; creating ID signals that are identical to the ID signals added to the RF signals; calculating correlation values between the converted signals and the created ID signals based on partial correlation; and extracting channel profile of multi-path signals caused by a channel between the transmitting part and the ID signal analyzing apparatus from the correlation value. The technology of the present research is applied to broadcasting and communication.