All The Claims

1. A method comprising:
receiving an indication to transmit a first type transmission;
selecting a first long training sequence to generate the first type transmission, wherein the first long training sequence is associated with the first type transmission in a first bandwidth mode of operation and a second long training sequence is associated with a second type transmission in the first bandwidth mode of operation; and
transmitting the first type transmission to an antenna for transmission.
2. The method of claim 1, further comprising transmitting, by an antenna, the first type transmission.
3. The method of claim 1, wherein receiving the indication comprises receiving the indication to transmit a short packet.
4. The method of claim 1, wherein receiving the indication comprises receiving the indication to transmit a short acknowledgement with a short training field sequence and the first long training field sequence.
5. The method of claim 1, wherein selecting the first long training sequence comprises selecting the first long training sequence from a group of more than two long training sequences designed for the first bandwidth mode of operation.
6. The method of claim 1, wherein selecting the first long training sequence from the group comprises selecting the first long training sequence a group of more than two long training sequences designed for the first bandwidth mode of operation, wherein each long training sequence in the group is differentially orthogonal to each other and differentially orthogonal to half of a third long training sequence for transmissions in a second bandwidth mode of operation.
7. The method of claim 1, wherein selecting the first long training sequence comprises selecting the first long training sequence, wherein the first long training sequence is differentially orthogonal to the second long training sequence, the first bandwidth mode of operation comprises a one megahertz bandwidth mode of operation.
8. A device comprising:
a signal processing logic; and
packet logic coupled with the signal processing logic to receive an indication to transmit a first type transmission; select a first long training sequence to generate the first type transmission, wherein the first long training sequence is associated with the first type transmission in a first bandwidth mode of operation and a second long training sequence is associated with a second type transmission in the first bandwidth mode of operation; and transmit the first type transmission to an antenna for transmission.
9. The device of claim 8, further comprising an antenna coupled with the packet logic to transmit the first type transmission.
10. The device of claim 8, wherein the packet logic comprises logic to receive the indication to transmit a short packet.
11. The device of claim 8, wherein the packet logic comprises logic to receive the indication to transmit a short acknowledgement with a short training field sequence and the first long training field sequence.
12. The device of claim 8, wherein the packet logic comprises logic to select the first long training sequence from a group of more than two long training sequences designed for the first bandwidth mode of operation.
13. The device of claim 8, wherein the packet logic comprises logic to select the first long training sequence in the group, wherein each long training sequence in the group is differentially orthogonal to each other and differentially orthogonal to half of a third long training sequence for transmissions in a second bandwidth mode of operation.
14. The device of claim 8, wherein the packet logic comprises logic to select the first long training sequence, wherein the first long training sequence is differentially orthogonal to the second long training sequence and the first bandwidth mode of operation comprises a one megahertz bandwidth mode of operation.
15. A method comprising:
receiving a transmission comprising a first long training sequence, wherein the first long training sequence is associated with the first type transmission in a first bandwidth mode of operation and a second long training sequence is associated with a second type transmission in the first bandwidth mode of operation; and
correlating the first long training sequence to identify whether the first long training sequence is associated with the first type transmission in the first bandwidth mode of operation.
16. The method of claim 15, further comprising determining an expected packet and determining if the transmission comprises the expected packet based upon a comparison with an expected long training sequence, wherein the expected long training sequence comprises the first long training sequence or the second long training sequence.
17. The method of claim 15, further comprising transmitting an indication of receipt of the first type transmission to a medium access control sublayer logic.
18. The method of claim 17, wherein transmitting the indication of receipt comprises transmitting the indication of receipt of a short packet.
19. The method of claim 17, wherein transmitting the indication of receipt comprises transmitting the indication of receipt of a short acknowledgement with a short training field sequence and the first long training field sequence.
20. The method of claim 15, wherein receiving the transmission comprises receiving the transmission via an antenna array.
21. The method of claim 15, wherein correlating the first long training sequence comprises classifying the transmission as the first bandwidth mode of operation based upon the differentially orthogonal properties of the first long training sequence and the second long training sequence being differentially orthogonal to each other and differentially orthogonal to half of a third long training sequence for transmissions in a second bandwidth mode of operation.
22. A device comprising:
a signal processing logic; and
correlation logic coupled with the signal processing logic to receive a transmission comprising a first long training sequence, wherein the first long training sequence is associated with the first type transmission in a first bandwidth mode of operation and a second long training sequence is associated with a second type transmission in the first bandwidth mode of operation; and correlate the first long training sequence to identify whether the first long training sequence is associated with the first type transmission in the first bandwidth mode of operation.
31. (canceled)
23. The device of claim 22, further comprising memory coupled with the correlation logic to store more than two long training sequences associated with the first bandwidth mode of operation, wherein each of the more than two long training sequences is associated with different type transmission.
24. The device of claim 22, wherein the correlation logic comprises logic to transmit an indication of receipt of the first type transmission to a medium access control sublayer logic.
25. The device of claim 24, wherein the logic to transmit the indication of receipt comprises logic to transmit the indication of receipt of a short packet.
26. The device of claim 22, wherein the logic to transmit the indication of receipt comprises logic to transmit the indication of receipt of a short acknowledgement with a short training field sequence and the first long training field sequence.
27. The device of claim 22, wherein the correlation logic comprises a frequency domain, differential detector to classify the transmission as the first bandwidth mode of operation based upon the differentially orthogonal properties of the first long training sequence and the second long training sequence being differentially orthogonal to each other and differentially orthogonal to half of a third long training sequence for transmissions in a second bandwidth mode of operation.
28. A machine-accessible product comprising:
a medium containing instructions, wherein the instructions, when executed by a station, causes the station to perform operations, the operations comprising:
receiving an indication to transmit a first type transmission;
selecting a first long training sequence to generate the first type transmission, wherein the first long training sequence is associated with the first type transmission in a first bandwidth mode of operation and a second long training sequence is associated with a second type transmission in the first bandwidth mode of operation; and
transmitting the first type transmission to an antenna for transmission.
29. The machine accessible product of claim 28, wherein selecting the first long training sequence comprises selecting the first long training sequence from a group of more than two long training sequences designed for the first bandwidth mode of operation.
30. A machine-accessible product comprising:
a medium containing instructions, wherein the instructions, when executed by a station, causes the station to perform operations, the operations comprising:
receiving a transmission comprising a first long training sequence, wherein the first long training sequence is associated with the first type transmission in a first bandwidth mode of operation and a second long training sequence is associated with a second type transmission in the first bandwidth mode of operation; and
correlating the first long training sequence to identify whether the first long training sequence is associated with the first type transmission in the first bandwidth mode of operation.

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 monolithic optical element comprising:
a substrate body;
at least one macro-optical characteristic integral in a first portion of the optical element; and
a plurality of micro-structures integral in a portion of the optical element wherein the micro-structures homogenize light passing through the optical element to produce a predetermined distribution of smoothly varying, non-discontinuous light exiting the optical element.
2. The optical element according to claim 1, wherein the micro-structures are optically created on a substrate and subsequently replicated from the substrate into a second portion during manufacture of the optical element.
3. The optical element according to claim 1, wherein the micro-structures are mechanically created on a substrate and subsequently replicated from the substrate into a second portion during manufacture of the optical element.
4. The optical element according to claim 1, wherein the substrate body is a Fresnel lens and the at least one macro-optical characteristic is a plurality of Fresnel optics.
5. The optical element according to claim 1, wherein the micro-structures further direct the predetermined distribution of light exiting the optical element in a predetermined direction.
6. The optical element according to claim 1, wherein the substrate body is a plastic material and wherein the at least one macro-optical characteristic and the micro-structures are each molded integral in the plastic material during formation of the optical element.
7. The optical element according to claim 1, wherein the substrate body is a hardened sol-gel solution and wherein the at least one macro-optical characteristic and the micro-structures are each formed integral in the sol-gel material during formation of the optical element.
8. The optical element according to claim 1, wherein the substrate body is a glass material and wherein the micro-structures are molded integral into the second portion of the glass material and the at least one macro-optical characteristic is subsequently formed in the first portion of the glass.
9. The optical element according to claim 1, wherein the substrate body is an elongate optical waveguide and the at least one macro-optical characteristic is a refractive index of the optical waveguide and wherein the micro-structures are formed integral in a transverse end of the optical waveguide.
10. The optical element according to claim 1, wherein the substrate body is a cylindrical lens and wherein the at least one macro-optical characteristic is defined by a curved surface on the cylindrical lens.
11. The optical element according to claim 1, wherein the substrate body is a convex lens and wherein the at least one macro-optical characteristic is a refractive index of a curved surface of the convex lens.
12. The optical element according to claim 1, wherein the substrate body is a prismatic structure and wherein the at least one macro-optical characteristic is a refractive index of a plurality of prisms on the prismatic structure.
13. The optical element according to claim 1, wherein the substrate body is a polarizer and wherein the macro-optical characteristic is a light polarizing capability of the polarizer.
14. The optical element according to claim 1, wherein the substrate body is an optical filter grating structure and wherein the at least one macro-optical characteristic is a filtering capability of a plurality of spaced apart gratings formed in the filter grating structure.
15. The optical element according to claim 1, wherein the substrate body is a concave lens and wherein the macro-optical characteristic is a refractive index of a concave curved surface of the concave lens.
16. A monolithic lens comprising:
a solid lens body having a first surface and a second surface;
a lens macro-structure integral in the first surface of the lens body; and
a plurality of surface micro-structures integral in the second surface of the monolith wherein the micro-structures homogenize light passing through the optical element to produce a predetermined distribution of smoothly varying, non-discontinuous light exiting the optical element.
17. The monolithic lens according to claim 16, wherein the micro-structures further direct light exiting the monolithic lens in a predetermined pattern.
18. The monolithic lens according to claim 16, wherein the micro-structures are non-uniform across the second surface.

What is claimed is:

1. In an optical wave interferometer for splitting a luminous flux from a light source into two, irradiating a sample with one of thus obtained two luminous fluxes so as to attain object light carrying a phase state of said sample, irradiating a reference plate with the other so as to attain reference light carrying a phase state of said reference plate, and re-combining said object light and reference light together so as to attain an interference fringe corresponding to a phase difference therebetween;
a support apparatus for an optical wave interferometer reference plate comprising a support member for supporting an outer peripheral face of said reference plate, said support member being a structure bonded to said outer peripheral face of said reference plate at a plurality of positions spaced from each other along a circumferential direction of said outer peripheral face and adapted to deform elastically in a circumferentialdiametric direction of said reference plate but less in an optical axis direction of said reference plate than in said circumferentialdiametric direction.
2. A support apparatus for an optical wave interferometer reference plate according to claim 1, wherein said support member has an annular form surrounding said outer peripheral face of said reference plate, said support member comprising cutouts extending from one of first and second ends in said optical axis direction of said reference plate toward the other to a position near said other end, and wherein cutouts extending from said first end toward said second end and cutouts extending from said second end toward said first end are disposed substantially alternately with respect to each other along said circumferential direction of said support member.
3. A support apparatus for an optical wave interferometer reference plate according to claim 2, wherein said support member is formed with adhesive injection holes penetrating through said support member from said outer peripheral face to said inner peripheral face with a predetermined interval along said circumferential direction of said support member, and wherein a groove extending in said circumferential direction is formed at respective positions where said adhesive injection holes are formed.
4. A support apparatus for an optical wave interferometer reference plate according to claim 1, wherein said support member has an annular base disposed at a position separated from said outer peripheral face of said reference plate in said optical axis direction of said reference plate, a plurality of support arms extending from said base in said optical axis direction of said reference plate in a cantilever fashion at a plurality of positions spaced from each other by a predetermined interval along said circumferential direction of said base, and a bonding part formed in each of said support arms so as to be bonded to said outer peripheral face.
5. A support apparatus for an optical wave interferometer reference plate according to claim 4, wherein said bonding part is constituted by an adhesive injection hole penetrating through said support arms from an outer side face to an inner side face thereof, and wherein a groove extending in said circumferential direction of said base is formed at a position where said adhesive injection hole is formed in said inner side face.

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 for readingwriting data of a disk drive that includes a spindle motor for rotating an optical disk and a head for readingwriting data from and to the disk, comprising the steps:
adjusting a position of the head for the first time in order to space apart the head from a center of the disk at a specific distance, wherein when the head is spaced apart from the center of the disk at said specific distance, an average vibration magnitude of the disk is the minimum during raising the rotating speed of the spindle motor from a low speed to a high speed;
raising said spindle motor from said low speed to said high speed; and
adjusting a position of the head for the second time in order to move the head to a desired track in the disk, thereby starting data readingwriting operation from and to the desired track in the disk.
2. The method according to claim 1, further comprising the following steps prior to adjusting the position of the head for the first time:
analyzing relationship among rotation speed of the spindle motor, a distance of the head with respect to the center of the disk and vibration magnitude of the disk, thereby obtaining an analyzed result; and
determining said specific distance of the head with respect to the center of the disk based on said analyzed result, wherein when the head is spaced apart from the center of the disk at said specific distance, the average vibration magnitude of the disk is the minimum during raising the rotating speed of the spindle motor from said low speed to said high speed.
3. The method according to claim 2, wherein said low speed of the spindle motor is 50 to 70 rps (rotations per second).
4. The method according to claim 2, wherein said high speed of the spindle motor is 180 to 240 rps (rotations per second).
5. The method according to claim 1, wherein said specific distance of the head with respect to the center of the disk ranges 22 to 58 mm.
6. The method according to claim 1, wherein said average vibration magnitude is an average of the vibration magnitude of said spindle motor at different speeds during raising the rotating speed of the spindle motor from said low speed to said high speed.
7. The method according to claim 1, wherein the step of adjusting said position of the head for the second time is to move the head horizontally relative to the disk to enable a laser beam emitted from the head focusing on the desired track in the disk, thereby starting data readingwriting operation from and to the desired track in the disk.
8. A method for readingwriting data of a disk drive that includes a spindle motor for rotating an optical disk and a head for readingwriting data from and to the disk, comprising the steps of:
moving the head to have a specific distance from a center of the disk before raising said spindle motor;
raising said spindle motor from a low speed to a high speed; and
moving the head to a desired track in the disk, thereby starting data readingwriting operation;
wherein the disk has a minimum average vibration magnitude during the raising step of said spindle motor when the head locates with said specific distance from the center of the disk.
9. The method according to claim 8, wherein said specific distance is determined by a vibration analyzed result of the disk.
10. The method according to claim 8, further comprising the steps of:
analyzing relationship among rotation speed of the spindle motor, a distance of the head with respect to the center of the disk and vibration magnitude of the disk, thereby obtaining an analyzed result; and
determining said specific distance of the head with respect to the center of the disk based on said analyzed result.
11. The method according to claim 8, wherein said low speed of the spindle motor is 50 to 70 rps (rotations per second).
12. The method according to claim 8, wherein said high speed of the spindle motor is 180 to 240 rps (rotations per second).
13. The method according to claim 8, wherein said specific distance of the head with respect to the center of the disk ranges 22 to 58 mm.
14. The method according to claim 8, wherein said average vibration magnitude is an average of the vibration magnitude of said spindle motor during raising the rotating speed of the spindle motor from said low speed to said high speed.