1. A connector with a force multiplying mechanism to be connected to a mating connector based on a force multiplying action, comprising:
a housing;
a slider to be mounted slidably in a direction intersecting a connecting direction through a side surface of the housing and formed with at least one cam groove engageable with at least one cam follower on the mating connector (F1); and
a lever including an operating portion on one end and displaceably mounted on the housing while being interlockingly coupled to the slider;
wherein:
the slider is movable with respect to the housing between a movement start position where the cam follower is received in the cam groove while the slider projects back in a mounting direction thereof and a movement end position reached by inserting the slider deeper into the housing from the movement start position to properly connect the connector with the mating connector;
at least one of the slider and the lever includes a lock that holds the slider at the movement start position by being locked to the housing, but is releasable from a locking state to the housing by displacing the lever;
a part of the lever located at substantially the same height as a projecting end part of the slider from the housing when the slider is at the movement start position serves as a protecting edge located substantially at the same position as or behind the projecting end part in the mounting direction of the slider.
2. The connector of claim 1, wherein the lever is mounted rotatably on the housing via at least one rotary shaft, and wherein a distance from the rotary shaft to the protecting edge is shorter than a distance from the rotary shaft to the operating portion.
3. The connector of claim 1, wherein the lever comprises two lever plates and the operating portion coupling the lever plates and mounted to substantially straddle between opposite side surfaces adjacent to a surface through which the slider is mounted; and the protecting edge being formed on each of the both lever plates to sandwich the projecting end part of the slider.
4. The connector of claim 1, wherein the force multiplying action is produced by displacing the lever provided on the connector in a state where the cam groove and the cam follower are engaged.
5. The connector of claim 4, wherein the slider is movable between a movement start position where the cam follower is received and a movement end position where connection of the connector with the mating connector is finished, and projects out from the connector in an arrangement direction of a plurality of mating connectors when at the movement start position.
6. The connector of claim 1, further comprising a wire cover projecting out from the housing while at least partly covering a wire drawing surface opposite a connection surface that is connectable to the mating connector, the wire cover being configured to correct a wiring direction of wires drawn out from the wire drawing surface; the lever being mounted between facing side surfaces of the connector housing located between a connection surface and the wire drawing surface and displaceable substantially along the connecting direction between the connection surface and the wire drawing surface.
7. The connector of claim 6, wherein the wire cover includes a base that is mountable on the housing and open toward the wire drawing surface, and a correcting portion that rises from a peripheral edge of the base via a constricted portion to narrow an inner space from the base.
8. The connector of claim 7, wherein:
the correcting portion of the wire cover extends and projects from the base in a direction substantially parallel to a rotation axis of the lever via the constricted portion; and
the lever comprises two lever plates to be mounted on the housing and an operating portion coupling the lever plates, the lever being positioned at an initial position before connection to the mating connector, and the operating portion of the lever being located along an extending direction of the constricted portion near the constricted portion at the initial position.
9. The connector of claim 1, further comprising a one-piece resilient plug including wire insertion holes and configured to collectively seal wires drawn out from a rear end surface of the housing by inserting the wires into the corresponding wire insertion holes in a sealed state, and comprises:
two wall surfaces for sandwiching the one-piece resilient plug from front and rear substantially in an inserting direction of the wire(s); and
positioning pins projecting substantially parallel to axial directions of the wire insertion holes from one of the wall surfaces toward the one-piece resilient plug and being press-fit into positioning holes arranged near the wire insertion holes;
at least one narrowed portion being formed at an axial intermediate position of the positioning hole.
10. The connector of claim 9, wherein the at least one narrowed portion has a small hole diameter.
11. The connector of claim 9, wherein at least one inner lip to be held in close contact with an insulation coating of the wire is formed on the inner peripheral surface of each of the wire insertion holes, and an axial position of the narrowed portion in the positioning hole is aligned with the positions of tops of the inner lips.
12. The connector of claim 9, wherein plural positioning holes are arranged at substantially diagonally symmetric positions with respect to the wire insertion hole.
13. A connector assembly with a force multiplying mechanism, comprising:
a plurality of fixed connectors arranged substantially side by side and each of which includes a cam follower; and
a plurality of lever connectors, at least one of the lever connectors being the connector of claim 1, the lever connectors being individually connectable to the respective fixed-side connectors and each of which includes a displaceably provided lever and is connectable to the corresponding fixed-side connector a force multiplying action produced by displacing the lever while the cam follower and the lever are engaged directly or indirectly.
14. The connector assembly of claim 13, wherein surfaces where the cam followers are formed are substantially perpendicular to each other in two adjacent ones of the fixed-side connectors.
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 method of generating a video reproduction synchronizing signal to generate a video reproduction synchronizing signal to reproduce video data and audio data in synchronization with each other, the method comprising:
acquiring output processing end timing for output to an audio reproducing unit for one-frame equivalent audio data that is equivalent to a display period for one frame of video data;
generating the video reproduction synchronizing signal every time the output processing end timing is acquired; and
setting the number of output samples of one-frame equivalent audio data for each frame of video data, the setting including determining the number of output samples by referring to a table describing rules to determine the number of output samples on the basis of a sampling rate of audio data and a frame rate of video data;
the acquiring including executing acquiring for each frame of video data on the basis of the number of output samples set by the setting.
2. The method of generating a video reproduction synchronizing signal according to claim 1, the acquiring including acquiring timing, at which a count value of the number of output samples of audio data outputted to the audio reproducing unit is a predetermined value, as the output processing end timing.
3. The method of generating a video reproduction synchronizing signal according to claim 1, the acquiring including acquiring timing, at which a flag set in a predetermined position of audio data outputted to the audio reproducing unit is detected, as the output processing end timing.
4. The method of generating a video reproduction synchronizing signal according to claim 1, the acquiring including acquiring timing, at which a block of the one-frame equivalent audio data is transferred to the audio reproducing unit, as the output processing end timing.
5. The method of generating a video reproduction synchronizing signal according to claim 1, further including generating the video reproduction synchronizing signal using a non-preemptive multitask operating system.
6. The method of generating a video reproduction synchronizing signal according to claim 5, the acquiring including acquiring timing, at which a blocking mode set on the basis of a system call issued at the time when the one-frame equivalent audio data is transferred to the audio reproducing unit as a block is canceled according to end of the transfer of the block of the one-frame equivalent audio data, as the output processing end timing.
7. The method of generating a video reproduction synchronizing signal according to claim 1, the setting including determining the number of output samples such that an average value of the number of output samples is equal to or approximate to a predetermined value.
8. The method of generating a video reproduction synchronizing signal according to claim 7, the determining including using Bresenham’s algorithm.