Abstract: A system, apparatus, and method for local insertion of analog or digital material into a television broadcast signal. A central insertion control unit controls the insertion of additional material while a remote insertion control unit locally controls the insertion of the additional material. The central insertion control unit contains a processor, storage media, and an encoder for encoding control and information signals into a broadcast signal. The control signal contains a cue signal for information about play lists, and an action signal for triggering insertion of the additional material. The control signal is encoded into a line of the vertical blanking interval. Once the control is detected by the remote insertion control unit the additional material is played and broadcast.

Abstract: A passive airborne mounted collision warning system suitable for light aircraft that enables an observer aircraft to determine the position of a nearby transponder-equipped target aircraft. The transponder-equipped target aircraft transmits replies responsive to interrogation signals from rotating secondary surveillance radars (SSR). In an embodiment of the invention, position of the target aircraft is determined based on the known position of the observer aircraft obtained e.g. via satellite navigation means such as GPS, the position of the SSR, and the bearing of the target aircraft measured by a direction finding antenna. The direction-finding antenna elements and the GPS receiver components are included in a device that is externally mounted on the observer aircraft. The data from the device is connected to a portable computer for processing and presentation to the pilot to alert him of the position of the target aircraft for avoiding collisions.

Abstract: A system, apparatus, and method for local insertion of analog or digital material into a television broadcast signal. A central insertion control unit controls the insertion of additional material while a remote insertion control unit locally controls the insertion of the additional material. The central insertion control unit contains a processor, storage media, and an encoder for encoding control and information signals into a broadcast signal. The control signal contains a cue signal for information about play lists, and an action signal for triggering insertion of the additional material. The control signal is encoded into a line of the vertical blanking interval. Once the control is detected by the remote insertion control unit the additional material is played and broadcast.

Abstract: A passive airborne mounted collision warning system suitable for light aircraft that enables an observer aircraft to determine the position of a nearby transponder-equipped target aircraft. The transponder-equipped target aircraft transmits replies responsive to interrogation signals from rotating secondary surveillance radars (SSR). In an embodiment of the invention, position of the target aircraft is determined based on the known position of the observer aircraft obtained e.g. via satellite navigation means such as GPS, the position of the SSR, and the bearing of the target aircraft measured by a direction finding antenna. The direction-finding antenna elements and the GPS receiver components are included in a device that is externally mounted on the observer aircraft. The data from the device is connected to a portable computer for processing and presentation to the pilot to alert him of the position of the target aircraft for avoiding collisions.