摘要:
In order to measure the performance of a DOCSIS upstream channel as well as to locate impairments, a special test signal is transmitted in a time slot of the upstream channel by a test instrument positioned anywhere within the CATV plant. A second test instrument, located at the termination point of the upstream plant, then detects, recovers, and processes the test signal in order to complete the measurement. The typical methods used to detect and recover bursted signals within a DOCSIS upstream channel use precise timing information transmitted in a corresponding DOCSIS downstream channel. Unfortunately, the downstream channel and thus the precise timing information are not always available to the secondary test instrument. The present invention also describes an apparatus and method for detecting a bursted test signal without the use of the DOCSIS upstream channel timing.
摘要:
A test system for a heterogeneous multipath network. A tester system evaluates a plurality of status indicators from a plurality of types of test components in a network. Based on the status indicators of at least one of the test components, the tester system selects a first test to be performed. After executing the first test, the tester system selects a second test to be performed based on the status indicators of at least one of the test components and a result of the first test.
摘要:
A method for controlling recording in a digital recording apparatus enables users to create improved video recordings and also conserves memory space of the recording apparatus. According to an exemplary embodiment, the method includes steps of detecting a first user input during recording representing a command to stop recording, enabling display of a first predetermined message responsive to the first user input, receiving a second user input representing a response to the first predetermined message, and controlling the digital video recording apparatus to generate a single program recording and a single program listing for the single program recording in response to the second user input.
摘要:
A method for skipping commercials during playback of a recorded program via an audio and/or video apparatus avoids the need to detect and record the location of the commercials at the time that the program is recorded. According to an exemplary embodiment, the method includes steps of detecting boundaries of a commercial by the audio and/or video apparatus examining program signals while playing back a program, and skipping the commercial in response to a user signal according to the detected boundaries.
摘要:
A test system for a heterogeneous multipath network. A tester system evaluates a plurality of status indicators from a plurality of types of test components in a network. Based on the status indicators of at least one of the test components, the tester system selects a first test to be performed. After executing the first test, the tester system selects a second test to be performed based on the status indicators of at least one of the test components and a result of the first test.