Author: claimsbot

What is claimed is:

1. A spotlight with perimetrical delimitation of the emitted light beam, comprising: a light source for emitting a light beam along a light path; an optical element movable axially with respect to the light beam to adjust a breadth of the light beam; a Fresnel lens arranged on the light path for diffusing the light beam; and beam adjusting means arranged at said light path for delimiting perimetrically the light beam, said beam adjusting means being mechanically and operatively associated with said optical element for joint axial movement.
2. The spotlight of claim 1, wherein said beam adjusting means comprise: a fixed plate with a through opening allowing passage of the light beam; a movable plate and an actuation motor supported at said fixed plate, and operatively connected to said movable plate for actuating the movable plate to carry out axial movement.
3. The spotlight of claim 2, wherein said optical element is supported by said movable plate.
4. The spotlight of claim 3, wherein said beam adjusting means further comprise: delimiting elements which include a rotating plate that rotates about an axis of the light beam; a grid supported on said rotating plate; and shutters with laminas which are provided on said grid and are slideable radially with respect to the axis of the light beam.
5. The spotlight of claim 4, wherein said beam adjusting means further comprise at least one pinion for translational actuation of said laminas, said shutters with laminas being provided with a rack-like tang that engages a said at least one pinion.
6. The spotlight of claim 4, wherein a rotation motor and pinion are further provided on said fixed plate, said rotating plate being provided perimetrically with a toothed sector that runs along a circumferential portion thereof, said rotation pinion, actuated by said rotation motor, engaging said toothed sector for actuation of said rotating plate.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

What is claimed is:

1. A method for providing a plurality of programs in a conditional access system, the method comprising the steps of:
selecting a plurality of digital bit streams from a transport stream;
encrypting a portion of each of the plurality of digital bit streams;
combining the encrypted portion and the unencrypted portion with the transport stream; and
transmitting the combined stream.
2. The method of claim 1, wherein each of the plurality of digital bit streams includes a packet identifier, and wherein the selecting step selects each of the plurality of digital bit streams by identifying a predetermined packet identifier.
3. The method of claim 1, wherein each of the plurality of digital bit streams includes a packet identifier, and wherein the selecting step selects the plurality of digital bit streams by identifying a plurality of predetermined packet identifiers.
4. The method of claim 3, wherein the selected plurality of digital bit streams are programs.
5. The method of claim 3, wherein the selected plurality of digital bit streams are elementary digital bit streams.
6. The method of clam 3, wherein a portion of the selected plurality of digital bit streams is encrypted according to the packet identifier associated with each of the plurality of digital bit streams.
7. The method of claim 6, wherein the packet identifier is indicative of each of the plurality of digital bit streams being one of a video stream, an audio stream, and a data stream.
8. The method of claim 7, wherein the encrypted portion includes at least one of the plurality of digital bit streams associated with the video stream.
9. The method of claim 7, wherein the encrypted portion includes at least one of the plurality of digital bit streams associated with the audio stream.
10. The method of claim 7, wherein the encrypted portion includes at least one of the plurality of digital bit streams associated with the data stream.
11. The method of claim 7, wherein the encrypted portion includes at least one of the plurality of digital bit streams associated with at least one of the video stream, the audio stream, and the data stream.
12. The method of claim 1, wherein the portion of the plurality of digital bit streams is encrypted according to a first level encryption method.
13. A method for providing a plurality of programs in a conditional access system, the method comprising the steps of:
selecting a plurality of elementary bit streams from a plurality of programs;
encrypting a portion of the selected streams;
combining the encrypted portion and the remaining portion of the selected streams with the plurality of programs to provide a partially-encrypted stream; and
transmitting the partially-encrypted stream.
14. The method of claim 13, wherein each of the plurality of elementary bit streams includes a plurality of packets, each packet having a packet header.
15. The method of claim 14, wherein the packet header includes a packet identifier identifying the packet, wherein the packet identifier is indicative of one of a video stream, an audio stream, and a data stream.
16. The method of claim 15, wherein the encrypted portion includes at least one of the plurality of packets associated with the video stream.
17. The method of claim 15, wherein the encrypted portion includes at least one of the plurality of packets associated with the audio stream.
18. The method of claim 15, wherein the encrypted portion includes at least one of the plurality of packets associated with the data stream.
19. The method of claim 15, wherein the encrypted portion includes at least one of the plurality of packets associated with at least one of the video stream, the audio stream, and the data stream.

1. An electrical connector, comprising:
a housing defining a plurality of walls and a receiving room surrounded by the walls;
a metal shell enclosing the housing;
a PCB located under the metal shell;
a terminal module received in the receiving room and defining a plurality of terminals passing through the PCB and extending out of the metal shell; and
an insulative outer cover having a receiving cavity enclosing the metal shell, a block wall limiting the PCB moving forwardly and at least one convex limiting the metal shell moving rearwardly;
wherein the insulative outer cover defines a pair of flexible fixing arms located on two sides of the metal shell; the convex is located on the rear end of the fixing arm and raised inwardly, and wherein the convex is attached to the rear surface of the metal shell.
2. The electrical connector as recited in claim 1, wherein the insulative outer cover further comprises a basic and a fixing portion forming together the receiving cavity.
3. The electrical connector as recited in claim 2, wherein the block wall located on the rear end of the receiving cavity.
4. The electrical connector as recited in claim 3, wherein an accommodating cavity is formed on the rear of the block wall.
5. The electrical connector as recited in claim 4, wherein the PCB is located in the accommodating cavity and attached to the rear surface of the blocking wall.
6. The electrical connector as recited in claim 5, wherein the accommodating cavity has a gap run through a lower surface of the accommodating cavity and passed through the terminal.
7. The electrical connector as recited in claim 1, wherein the PCB has a pair of receiving holes, and the housing defines a pair of protrusions located a lower wall thereof and received respectively in the receiving holes of the PCB.
8. An electrical connector, comprising:
a housing defining a receiving room;
a plurality of terminals received in the receiving room;
a metal shell enclosing the housing;
a PCB located under the metal shell and retained under the housing; and
an inslulative outer cover having a receiving cavity enclosing the metal shell and the PCB, a pair of flexible fixing arms extending rearwardly from the receiving cavity and a pair of convexes located respectively on the rear end of the fixing arms; wherein
the convexes are attached to a rear surface of the metal shell, and the flexible fixing arms are attached to two lateral sides of the metal shell.
9. The electrical connector as recited in claim 8, wherein an accommodating cavity is located behind the receiving cavity and receiving the PCB.
10. The electrical connector as recited in claim 9, wherein a block wall is formed between the receiving cavity and the accommodating cavity, and the PCB is attached to a rear surface of the block wall.
11. The electrical connector as recited in claim 10, wherein the terminals are passed through the PCB and extended out of the insulative outer cover.
12. An electrical connector assembly for use with a plug, comprising:
an insulative outer cover defining a horizontal receiving space forwardly communicating with an exterior via an opening formed in a front face thereof, and said outer cover further equipped with a latch thereof;
a modular jack forwardly assembled into the receiving space and locked by the latch for not rearward moving;
the modular jack including:
an insulative housing defining a contour with a front section snugly exposed in the opening, and a plug receiving cavity formed in the housing and located behind the opening;
a plurality of terminals disposed in the housing with contacting sections exposed in the plug receiving cavity and tail sections exposed outside of the housing; and
a printed circuit board to which the tail sections are secured; wherein the outer cover defines a slot adjacent to the receiving space to protectively receive the printed circuit board therein, said slot being hidden behind the front face of the outer cover.
13. The electrical connector assembly as claimed in claim 12, wherein the front section of the housing is essentially being coplanar with the front face of the outer cover.
14. The electrical connector assembly as claimed in claim 12, wherein said outer cover is equipped with a mounting device, for mounting to an exterior unit, on an exterior face which is perpendicular to the front face of the outer cover under condition that the housing is essentially located between the printed circuit board and the mounting device in a vertical direction.
15. The electrical connector assembly as claimed in claim 14, wherein the outer cover defines a notch in another exterior face opposite to said exterior face to expose the printed circuit board in the vertical direction.
16. The electrical connector assembly as claimed in claim 12, wherein the front section of the housing defines a narrowed locking region for locking a deflectable latch of the plug under condition that the printed circuit board is intimately located behind the narrowed locking region.
17. The electrical connector assembly as claimed in claim 12, wherein said latch is resilient for deflection during assembling or disassembling the modular jack with regard to the outer cover.

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 boundary microphone comprising:
a base plate having a flat base surface and a recess, the base plate being flat and made of a metallic material;
a cover having a number of sound wave through holes, the cover closing an upper surface of the base plate;
a circuit board having a sound signal output part provided on an underside thereof to face the recess, a shield pattern formed on an upper surface thereof for electrostatically shielding inside of the recess of the base plate, and an opening in a part thereof, the circuit board being mounted on the base plate so as to cover the recess;
a microphone unit having a lead wire and an output terminal electrically connected to the sound signal output part through the lead wire, the microphone unit being mounted in the opening; and
a metallic holder comprising a cylindrical section into which the microphone unit is fitted, and a D-cut section having a semi-cylindrical part extending from the cylindrical section, a bottom plate to cover an end of the semi-cylindrical part and a lower opening, the lower opening being covered by the circuit board to form a space for shielding the lead wire therein; the D-cut section extending from the cylindrical section in a direction parallel to a board surface of the circuit board,
wherein the space is defined by the D-cut section, the circuit board and the microphone unit, and the lead wire is located in the space, and wherein only the cylindrical section of the holder is fitted in the opening, and the D-cut section extends toward the sound signal output part to cover a part of the circuit board.
2. The boundary microphone according to claim 1, wherein the circuit board includes a ground pattern thereon, and the D-cut section is soldered to the ground pattern.
3. The boundary microphone according to claim 1, wherein an uncoated solder plated wire is used for the lead wire.
4. A boundary microphone comprising:
a base plate having a flat base surface and a recess for mounting a wiring board formed on an upper surface, the base plate being flat and made of a metallic material;
a cover having a number of sound wave through holes, the cover closing an upper surface side of the base plate;
a circuit board mounted on the base plate so as to cover the recess, the circuit board having, in a part of the circuit board, an opening for mounting a microphone unit; and
a microphone unit mounted in the opening with a metallic holder,
wherein a sound signal output part is provided on an underside of the circuit board that faces the recess, a shield pattern for electrostatically shielding inside of the recess with the base plate is formed on an upper surface side of the circuit board, and an output terminal of the microphone unit is electrically connected to the sound signal output part through a lead wire,
wherein the holder comprises a cylindrical section into which a rear end side of the microphone unit is fitted, and a D-cut section in which a part of a circumferential surface and a base surface of a cylinder with a base integral with the cylindrical section is cut away in parallel to a board surface of the circuit board, and the lead wire is routed within the D-cut section,
wherein the lead wire is drawn to the underside of the circuit board through a through hole and soldered to the sound signal output part, and wherein only the cylindrical section of the holder is fitted in the opening, and the D-cut section extends toward the sound signal output part to cover a part of the circuit board.
5. The boundary microphone according to claim 1, wherein the bottom is located at a side opposite to the cylindrical section.