摘要:
A television monitor display comprises a first selectable source (100) of a first video display signal (OAM) and a second selectable source (U13) of a second signal (OSD) for video display. A video processor (U2) receives signals from the first and second selectable sources and controllably combines the second signal (OSD) with said first video display signal (OAM). A sync separator (U3) is coupled to receive the combined signal and generate therefrom separated synchronizing signals (HSYNC, VSYNC). A controller (U8) is responsive to user selection of the first selectable source (100) and generates a disable signal (FSW DIS.) for controlling the video processor (U2) to inhibit combing of the second signal (OSD) for a predetermined time.
摘要:
A television monitor display comprises a first selectable source (100) of a first video display signal (OAM) and a second selectable source (U13) of a second signal (OSD) for video display. A video processor (U2) receives signals from the first and second selectable sources and controllably combines the second signal (OSD) with said first video display signal (OAM). A sync separator (U3) is coupled to receive the combined signal and generate therefrom separated synchronizing signals (HSYNC, VSYNC). A controller (U8) is responsive to user selection of the first selectable source (100) and generates a disable signal (FSW DIS.) for controlling the video processor (U2) to inhibit combing of the second signal (OSD) for a predetermined time.
摘要:
A connector with a limited ampacity supplies a load which draws more current than the ampacity of the connector. A buck converter changes the power passing through the connector to a higher current at a lower voltage to energize the load. Alternatively, if the load is intermittent, the current passing through the connector may charge a large capacitor which is able to supply a larger current to the intermittent load. The capacitor may also be used to power a continuous load, such as a memory, during failure of a power supply feeding the connector.
摘要:
A television monitor display comprises a first selectable source (100) of a first video display signal (OAM) and a second selectable source (U13) of a second signal (OSD) for video display. A video processor (U2) receives signals from the first and second selectable sources and controllably combines the second signal (OSD) with said first video display signal (OAM). A sync separator (U3) is coupled to receive the combined signal and generate therefrom separated synchronizing signals (HSYNC, VSYNC). A controller (U8) is responsive to user selection of the first selectable source (100) and generates a disable signal (FSW DIS.) for controlling the video processor (U2) to inhibit combing of the second signal (OSD) for a predetermined time.
摘要:
A system as described herein enables a user to access auxiliary information when viewing an enhanced performance television signal or program. Particularly, a television signal system is operative, configured, and/or enabled to allow a user to access and/or utilize auxiliary information when viewing a high definition or progressive-scan television signal. Briefly, an exemplary television signal system receives the auxiliary information/data (e.g. closed caption data) on a selected interlaced standard definition input, processes the auxiliary data, and combines or overlays the auxiliary data with a television (video) signal received on a selected input that does not have its own embedded auxiliary information/data. More particularly, an exemplary television signal system such as described herein involves using closed caption (CC) data from a standard definition signal, processing the CC data, and overlaying the CC data at a video rate of a higher definition signal selected for viewing that does not carry its own embedded closed caption data.
摘要:
In a tuning control system for a television receiver, an analog AFT signal is sampled during blanking intervals when the amplitude of the video carrier is relative constant and therefore cannot affect the amplitude of the AFT signal significantly. This reduces the AFT filtering requirements.
摘要:
A television monitor display comprises a first selectable source (100) of a first video display signal (OAM) and a second selectable source (U13) of a second signal (OSD) for video display. A video processor (U2) receives signals from the first and second selectable sources and controllably combines the second signal (OSD) with said first video display signal (OAM). A sync separator (U3) is coupled to receive the combined signal and generate therefrom separated synchronizing signals (HSYNC, VSYNC). A controller (U8) is responsive to user selection of the first selectable source (100) and generates a disable signal (FSW DIS.) for controlling the video processor (U2) to inhibit combing of the second signal (OSD) for a predetermined time.
摘要:
A system as described herein enables a user to access auxiliary information when viewing an enhanced performance television signal or program. Particularly, a television signal system is operative, configured, and/or enabled to allow a user to access and/or utilize auxiliary information when viewing a high definition or progressive-scan television signal. Briefly, an exemplary television signal system receives the auxiliary information/data (e.g. closed caption data) on a selected interlaced standard definition input, processes the auxiliary data, and combines or overlays the auxiliary data with a television (video) signal received on a selected input that does not have its own embedded auxiliary information/data. More particularly, an exemplary television signal system such as described herein involves using closed caption (CC) data from a standard definition signal, processing the CC data, and overlaying the CC data at a video rate of a higher definition signal selected for viewing that does not carry its own embedded closed caption data.