1. A keyboard module adapted to be used in an electronic device, the electronic device having a casing, the casing having a containing opening, the keyboard module contained in the containing opening and comprising:
a bottom plate disposed within the casing, and having a circuit disposed thereon or therebeneath;
at least one elastic component disposed on the bottom plate or the circuit;
a cover disposed movably up-and-down in the containing opening with respect to the casing and located above the bottom plate, wherein the cover has at least one opening respectively aligned to the elastic component; and
at least one key cap respectively disposed on the corresponding elastic component, wherein at least a portion of the key cap protrudes from the corresponding opening so as to be pushed by a user, and at least another portion of the key cap interferes with the corresponding opening so as to drive the key cap to resist elasticity of the elastic component and move to shorten a distance between the key cap and the bottom plate when the cover moves downward to the bottom plate.
2. The keyboard module as recited in claim 1, wherein the another portion of the key cap is a first flange.
3. The keyboard module as recited in claim 1, wherein each of the elastic components is a rubber dome.
4. The keyboard module as recited in claim 1 further comprising a plurality of scissors mechanisms respectively connected to the key caps and connected with the bottom plate.
5. The keyboard module as recited in claim 2, wherein the first flange appears to be in a ring-shaped and extends along a periphery of the key cap.
6. The keyboard module as recited in claim 2, wherein an inner edge of each of the openings has a second flange, and each of the first flanges is located between the corresponding second flange and the bottom plate, so as to timely interfere with the corresponding second flange to prevent the key cap from departing the opening.
7. The keyboard module as recited in claim 6, wherein the second flange appears to be in a ring-shaped and surrounds the key cap.
8. The keyboard module as recited in claim 1, wherein an edge of the cover has a stop portion, and the stop portion interferes with the containing opening of the casing to prevent the cover from departing the casing.
9. An electronic device comprising:
a first body having a casing, the casing having a containing opening;
a second body pivoted on the first body;
a keyboard module contained in the containing opening of the casing, comprising:
a bottom plate disposed within the casing and having a circuit disposed thereon or therebeneath;
at least one elastic component disposed on the bottom plate or the circuit;
a cover disposed movably up-and-down in the containing opening of the casing with respect to the casing and located above the bottom plate, wherein the cover has at least one opening respectively aligned to the elastic component; and
at least one key cap respectively disposed on the corresponding elastic component, wherein at least a portion of the key cap protrudes from the corresponding opening so as to be pushed by a user, and at least another portion of the key cap interferes with the corresponding opening; and
a driving member disposed on at least one of the first body and the second body, wherein the driving member is adapted to drive the cover to move from a first position towards the bottom plate to a second position, and drive the key cap to resist elasticity of the elastic component and move to shorten a distance between the key cap and the bottom plate.
10. The electronic device as recited in claim 9, wherein the another portion of the key cap is a first flange.
11. The electronic device as recited in claim 9, wherein each of the elastic components is a rubber dome.
12. The electronic device as recited in claim 9, wherein the keyboard module further comprises a plurality of scissors mechanisms respectively connected the key cap and connected with the bottom plate.
13. The electronic device as recited in claim 10, wherein the first flange appears to be in a ring-shaped and extends along a periphery of the key cap.
14. The electronic device as recited in claim 10, wherein an inner edge of each of the openings has a second flange, each of the first flanges is located between the corresponding second flange and the bottom plate, so as to timely interfere with the corresponding second flange to prevent the key cap from departing the opening.
15. The electronic device as recited in claim 14, wherein the second flange appears to be in a ring-shaped and surrounds the key cap.
16. The electronic device as recited in claim 9, wherein an edge of the cover has a stop portion, and the stop portion interferes with the containing opening of the casing to prevent the cover from departing the casing.
17. The electronic device as recited in claim 9, wherein the cover has a convex portion, the convex portion has an inclined surface, the driving member is a push button and slidably disposed on the casing, and the push button is configured to push the convex portion along the inclined surface, so as to drive the cover to move from the first position to the second position.
18. The electronic device as recited in claim 17, wherein the push button is slidably disposed on the casing along a first direction, the cover is adapted to move towards the bottom plate along a second direction, and the first direction is perpendicular to the second direction.
19. The electronic device as recited in claim 9, wherein the driving member is a push button and slidably disposed on the casing, the push button has a convex portion, the convex portion has an inclined surface, the push button is configured to push the cove to move via the inclined surface, so as to drive the cover to move from the first position to the second position.
20. The electronic device as recited in claim 9, wherein the driving member is a bump and disposed at the second body, and when the second body is closed to the first body, the bump presses down the cover from the first position to the second position.
21. The electronic device as recited in claim 9, wherein the cover has a magnetic portion, the driving member is a magnetic member and disposed at the second body, when the second body is closed to the first body, the magnetic member is aligned to the magnetic portion, and a magnetic repulsion between the magnetic member and the magnetic portion presses down the cover from the first position to the second position.
22. The electronic device as recited in claim 9, wherein when the cover is located at the second position and the second body is closed to the first body, a display surface of the second body and each of the key caps have a spacing therebetween.
23. The electronic device as recited in claim 9, wherein when the driving member releases the cover, the cover is reset from the second position to the first position via elastic force of the elastic components.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A system for frame accurate insertion of a media segment into a broadcast signal, comprising:
a central insertion control unit, capable of inserting the media segment into a broadcast signal, that inserts a control signal related to the media segment and an information signal into the broadcast signal, the central insertion control unit being coupled to a central source broadcast equipment; and
a remote insertion control unit that controls the insertion of the media segment based on the control signal received from the central insertion control unit, the remote insertion control unit being coupled to a rebroadcasting equipment of a remote receiver, the remote receiver detecting the control signals and information signal in a received broadcast signal and broadcasting the media segment in response to the control signal;
wherein the control signal is inserted into the broadcast signal after confirmation is received that the media segment was transferred to and stored at a remote station and comprises:
a cue signal that transfers information about media segments; and
an action signal that triggers an insertion of the media segment.
2. The system of claim 1 wherein the central insertion control unit inserts the control signal into spare data capacity of the broadcast signal.
3. The system of claim 2 wherein the action signal references time.
4. The system of claim 2, the control signals further comprising:
a security code identifying the channel to be used by the broadcast signal.
5. The system of claim 4, the control signals further comprising:
a package identifier used to identify the proper receipt of the control signal by the remote insertion control unit.
6. The system of claim 5, the control signals further comprising:
an encryption key used to decipher the media segments.
7. The system of claim 5 wherein the central insertion control unit comprises:
storage media for storing control information as well as media segment information and logging information;
a processor for controlling and monitoring the insertion and being coupled to the storage media;
an encoder for encoding control signals and information signals into a broadcast signal, the encoder being coupled to the processor; and
a data communications unit for external communication and serial interface for connection to external devices, the data communications unit and the serial interface being coupled to the processor.
8. The system of claim 7 further comprising:
a first remote control unit coupled to the central insertion control unit for remotely controlling and communicating with the central insertion control unit;
a second remote control unit coupled to the remote insertion control unit for remotely controlling and communicating with the remote insertion control unit; wherein communication with the first remote control unit and the central insertion control unit is devised to be performable by telecommunications lines.
9. The system of claim 5 wherein the remote insertion control unit comprises:
a processor;
storage media for storing media segment and being coupled to the processor;
a player for playing stored media segment and being coupled to the processor and the storage media;
a broadcast signal switch for switching between broadcasting received broadcast signals and media segment being played by the player, the media segment being input into the switch as broadcast signals;
an insertion control unit being coupled to and devised for controlling the switch, the insertion control unit having an input for receiving the video signal portion of a broadcast video signal, from which a control signal is extractable;
a computer interface being connectable to the processor;
a data broadcast transceiver being coupled to the computer interface; and
an audio-video changeover for switching from a received broadcast signal output to an insertion signal output from the player, the audio-video changeover being coupled to the computer interface.
10. The system of claim 9 further comprising:
a first remote control unit coupled to the central insertion control unit for remotely controlling and communicating with the central insertion control unit;
a second remote control unit coupled to the remote insertion control unit for remotely controlling and communicating with the remote control unit; wherein communication with the first and second remote control units and the insertion control units is performed by telecommunications lines.
11. The system of claim 10 wherein the action signal triggers an insertion of the media segment based on the content of the media segment.
12. The system of claim 10 wherein the action signal triggers an insertion of the media segment based on the context of the media segment.
13. The system of claim 5 wherein the context of the media segment is conveyed to the remote insertion control unit via a feedback channel from an end receiver of the broadcast channel.
14. The system of claim 10, wherein the action signal triggers an insertion of the media segment in response to central playing schedule information.
15. The system of claim 14, wherein the remote insertion control unit is coupled to remote storage media for storing media segments, play lists, log files and status information.
16. The system of claim 15, wherein the central insertion control unit and a remote insertion control unit are connectable into a network by the telecommunications lines.
17. The system of claim 15, wherein the central insertion control unit, the remote insertion control unit and a separately located compressiondecompression unit for compressingdecompressing information are connectable into a network by the telecommunications lines.
18. The system of claim 17, wherein the control signal encoder is encoded into a Teletext compatible format.
19. The system of claim 18, wherein the control signal encoder is encoded into a Teletext compatible format transparent to a standard Teletext receiver.
20. The system of claim 18, wherein the control signal encoder is encoded into a Hamming coded format.
21. The system of claim 17 wherein the broadcast signal is a radio signal.
22. The system of claim 21 wherein the radio signal is digital.
23. The system of claim 17 wherein the broadcast signal is a television signal.
24. The system of claim 23 wherein the spare capacity of the broadcast signal is a vertical blanking interval.
25. The system of claim 23 wherein the broadcast signal is a high definition television signal.