1. A method for preparing a porous carbon structure, the method comprising the steps of:
mixing a carbon precursor, a pyrolytic template, and a solvent, to prepare a spray solution, the carbon precursor being polyacrylamide; and
subjecting the spray solution either to spray pyrolysis or to spray drying and then spray pyrolysis,
wherein the pyrolytic template is pyrolyzed at a temperature range in which the carbon precursor is carbonized or at a temperature below the temperature range.
2. The method according to claim 1, wherein the carbon precursor contained in a carbon precursorpyrolytic template composite is carbonized and crystallized by pyrolysis, while the template is pyrolyzed to form a pore structure.
3. The method according to claim 1, wherein the pyrolytic template is selected from the group consisting of cationic surfactants, anionic surfactants, nonionic surfactants and amphoteric surfactants.
4. The method according to claim 3, wherein the cationic surfactants are selected from the group consisting of quaternary ammonium salts, imidazolium salts, pyridinium salts, quinolinium salts, isoquinolinium salts, polyethyleneimine, polyprolyleneimine, polyallylamine, polylysine and polyamine.
5. The method according to claim 3, wherein the anionic surfactants are selected from the group consisting of alkyl sulfates, alkyl sulfonates, alkyl carboxylates, alkylbenzene carboxylates and alkylbenzene sulfonates.
6. The method according to claim 3, wherein the nonionic surfactants are selected from the group consisting of polyethylene oxides (PEO), polypropylene oxides (PPO) and a poly(ethylene oxide)-(propylene oxide) block copolymers.
7. The method according to claim 1, wherein the pyrolysis is carried out in a temperature range of 300-1500\xb0 C.
8. The method according to claim 1, wherein the prepared carbon structure has an average size ranging from 20 nm to 1000 \u03bcm.
9. A method for preparing a porous carbon structure, the method comprising the steps of:
mixing a carbon precursor, a hard template and a solvent to prepare a spray solution, the hard template being a metal oxide;
subjecting the spray solution either to spray pyrolysis or to spray drying and then spray pyrolysis, to form a carbonized carbon structurehard template composite; and
removing the template from the carbonized carbon structurehard template composite.
10. The method according to claim 9, wherein the carbonized carbon structurehard template composite is treated with water, an acid or a base to remove the template, thus forming a pore structure.
11. The method according to claim 9, wherein the metal oxide is selected from the group consisting of silica, alumina and titania.
12. The method according to claim 9, wherein the carbon precursor is selected from the group consisting of phenol-aldehyde resin, urea-aldehyde resin, aniline-aldehyde resin, polyimide, polyacrylonitrile, polystryrene, polydivinylbenzene, polyvinylpyridine, polypyrrole, polythiophene, polyaniline, perfuryl alcohol, polyacrylamide, cellulose, sugar, sugar polymers, carbohydrates, and mixtures thereof.
13. The method according to claim 9, wherein the pyrolsis is carried out in a temperature range of 300-1500\xb0 C.
14. The method according to claim 9, wherein the prepared carbon structure has an average size ranging from 20 nm to 1000 \u03bcm.
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 operating a wireless device in a network environment where the wireless device and a counterpart device exist, the method comprising:
determining a Relative Distance Value (RDV) between the wireless device and an object comprising the counterpart device via image capture using a camera; and
identifying the counterpart device using the determined RDV.
2. The method of claim 1, further comprising performing a function determined in advance between the wireless device and the counterpart device using the identified counterpart device.
3. The method of claim 2, wherein the function determined in advance between the wireless device and the counterpart device comprises at least one of an image view function, a multimedia play function, a data backup function, a data share function, a synchronization function, and a slide show function.
4. The method of claim 1, wherein determining the RDV comprises:
displaying a focus zone and a preview image corresponding to the captured image on a display unit;
when a shooting key is selected, determining whether an object image and a height of the focus zone coincide in the preview image;
when the object image and the height of the focus zone coincide in the preview image, capturing the object; and
when the object image and the height of the focus zone do not coincide in the preview image, indicating that the object image and the height of the focus zone do not coincide and requesting to match the object image and the height of the focus zone.
5. The method of claim 4, wherein the object image and the height of the focus zone are matched using at least one of a user’s position movement, an auto-focus function of a camera, and a zoom function of the camera.
6. The method of claim 5, wherein determining the RDV further comprises:
displaying an input window for receiving a device type of the counterpart device on a display unit; and
when the device type of the counterpart device is input via the input window, determining a height of the object based on the input device type and determining a shooting distance based on the height of the object, a focal length of the camera, and a height of an image sensor of the camera,
wherein the shooting distance D is determined using Equation below:
Shooting
\ue89e
\ue89e
distance
\ue89e
\ue89e
D
=
Height
\ue8a0
(
H
)
\ue89e
\ue89e
of
\ue89e
\ue89e
object
Height
\ue8a0
(
h
)
\ue89e
\ue89e
of
\ue89e
\ue89e
image
\ue89e
\ue89e
sensor
\xd7
Focal
\ue89e
\ue89e
length
\ue89e
\ue89e
(
d
)
*
7. The method of claim 6, wherein the RDV is determined based on the determined shooting distance using the Equations below:
R
\ue89e
\ue89e
D
\ue89e
\ue89e
V
=
shooting
\ue89e
\ue89e
distance
\ue89e
\ue89e
D
image
\ue89e
\ue89e
proportional
\ue89e
\ue89e
const
.
\ue89e
\u025b
\xd7
focal
\ue89e
\ue89e
length
\ue89e
\ue89e
proportional
\ue89e
\ue89e
cont
.
\ue89e
\u03b7
image
\ue89e
\ue89e
proportional
\ue89e
\ue89e
const
.
\ue89e
\u025b
=
object
\ue89e
\ue89e
image
\ue89e
\ue89e
size
\ue89e
\ue89e
I
zone
focus
\ue89e
\ue89e
zone
\ue89e
\ue89e
size
\ue89e
\ue89e
F
zone
focal
\ue89e
\ue89e
length
\ue89e
\ue89e
proportional
\ue89e
\ue89e
const
.
\ue89e
\u03b7
=
shooting
\ue89e
\ue89e
focal
\ue89e
\ue89e
distance
\ue89e
\ue89e
d
s
basic
\ue89e
\ue89e
focal
\ue89e
\ue89e
distance
\ue89e
\ue89e
d
b
wherein the object image size Izone is the size of the object image, the focus zone size Fzone is a reference value of a vertical size of the object image, the basic focal distance db is a focal distance when there is no zoom-in or zoom-out, and the shooting focal distance ds is a focal distance used for actual shooting.
8. The method of claim 1, wherein identifying the counterpart device comprises:
determining whether an RDV that is within a predetermined error range of the determined RDV exists in a database; and
when the RDV that is within the predetermined error range of the determined RDV exists in the database, extracting a stored image of the counterpart device mapped to the RDV that is within the predetermined error range of the determined RDV from the database.
9. The method of claim 8, wherein extracting a stored image of the counterpart device comprises:
when a plurality of RDVs that are within the predetermined error range of the determined RDV exist in the database, collecting auxiliary information for identifying the counterpart device; and
extracting the stored image of the counterpart device mapped to the RDV that is within the predetermined error range of the determined RDV and the collected auxiliary information from the database,
wherein the auxiliary information comprises at least one of position information and bearings information.
10. The method of claim 8, further comprising, when the RDV that is within the predetermined error range of the determined RDV does not exist in the database, indicating that relevant counterpart device information is not registered.
11. The method of claim 1, further comprising registering a counterpart device to be connected for performing at least one specific function, by
mapping the determined RDV to a captured image of the object and storing the same.
12. The method of claim 11, further comprising:
determining whether a plurality of RDVs that are within the predetermined error range of the determined RDV exist in a database;
when a plurality of RDVs that are within the predetermined error range of the determined RDV exist in the database, collecting auxiliary information for identifying the counterpart device; and
mapping the determined RDV and the collected auxiliary information to the captured image of the counterpart device and storing the same,
wherein the auxiliary information comprises at least one of position information and bearings information.
13. An apparatus of a wireless device in a network environment where the wireless device and a counterpart device exist, the apparatus comprising:
a camera unit configured to capture an image of an object comprising the counterpart device; and
a counterpart device registration and connection manager configured to determine a Relative Distance Value (RDV) between the wireless device and the object via the captured image, and identifying the counterpart device using the determined RDV.
14. The apparatus of claim 13, wherein the counterpart device registration and connection manager is further configured to perform a function determined in advance between the wireless device and the counterpart device using the identified counterpart device.
15. The apparatus of claim 14, wherein the function determined in advance between the wireless device and the counterpart device comprises at least one of an image view function, a multimedia play function, a data backup function, a data share function, a synchronization function, and a slide show function.
16. The apparatus of claim 13, further comprising a display unit configured to display a focus zone and a preview image when capturing the image of the object,
wherein the counterpart device registration and connection manager is further configured to determine whether an object image and a height of the focus zone coincide in the preview image when a shooting key is selected, control the camera unit to capture the object and when the object image and the height of the focus zone coincide in the preview image, and when the object image and the height of the focus zone do not coincide in the preview image, indicate that the object image and the height of the focus zone do not coincide with each other and request to match the object image and the height of the focus zone.
17. The apparatus of claim 16, wherein the counterpart device registration and connection manager is further configured to match the object image and the height of the focus zone using at least one of a user’s position movement, an auto-focus function of a camera, and a zoom function of the camera.
18. The apparatus of claim 17, wherein the display unit is further configured to display an input window for receiving a device type of the counterpart device,
wherein the counterpart device registration and connection manager is further configured to, when the device type of the counterpart device is input via the input window, determine a height of the object based on the input device type, and determine a shooting distance based on the height of the object, a focal length of the camera, and a height of an image sensor of the camera, and
wherein the shooting distance is determined using Equation below:
Shooting
\ue89e
\ue89e
distance
\ue89e
\ue89e
D
=
Height
\ue8a0
(
H
)
\ue89e
\ue89e
of
\ue89e
\ue89e
object
Height
\ue8a0
(
h
)
\ue89e
\ue89e
of
\ue89e
\ue89e
image
\ue89e
\ue89e
sensor
\xd7
Focal
\ue89e
\ue89e
length
\ue89e
\ue89e
(
d
)
*
19. The apparatus of claim 18, wherein the RDV is determined based on the determined shooting distance using the Equations below:
R
\ue89e
\ue89e
D
\ue89e
\ue89e
V
=
shooting
\ue89e
\ue89e
distance
\ue89e
\ue89e
D
image
\ue89e
\ue89e
proportional
\ue89e
\ue89e
const
.
\ue89e
\u025b
\xd7
focal
\ue89e
\ue89e
length
\ue89e
\ue89e
proportional
\ue89e
\ue89e
cont
.
\ue89e
\u03b7
image
\ue89e
\ue89e
proportional
\ue89e
\ue89e
const
.
\ue89e
\u025b
=
object
\ue89e
\ue89e
image
\ue89e
\ue89e
size
\ue89e
\ue89e
I
zone
focus
\ue89e
\ue89e
zone
\ue89e
\ue89e
size
\ue89e
\ue89e
F
zone
focal
\ue89e
\ue89e
length
\ue89e
\ue89e
proportional
\ue89e
\ue89e
const
.
\ue89e
\u03b7
=
shooting
\ue89e
\ue89e
focal
\ue89e
\ue89e
distance
\ue89e
\ue89e
d
s
basic
\ue89e
\ue89e
focal
\ue89e
\ue89e
distance
\ue89e
\ue89e
d
b
wherein the object image size Izone is the size of the object image, the focus zone size Fzone is a reference value of a vertical size of the object image, the basic focal distance db is a focal distance when there is no zoom-in or zoom-out, and the shooting focal distance ds is a focal distance used for actual shooting.
20. The apparatus of claim 13, wherein the counterpart device registration and connection manager is further configured to determine whether an RDV that is within a predetermined error range of the determined RDV exists in a database, and when the RDV that is within a predetermined error range of the determined RDV exists in the database, extract a stored image of the counterpart device mapped to the RDV from the database.
21. The apparatus of claim 20, wherein the counterpart device registration and connection manager is further configured to, when a plurality of RDVs that are within the predetermined error range of the determined RDV exist in the database, collect auxiliary information for identifying the counterpart device, and extract the stored image of the counterpart device mapped to the RDV that is within the predetermined error range of the determined RDV and the collected auxiliary information from the database, wherein the auxiliary information comprises at least one of position information and bearings information.
22. The apparatus of claim 20, wherein the counterpart device registration and connection manager is further configured to, when the RDV that is within the predetermined error range of the determined RDV does not exist in the database, indicate that relevant counterpart device information is not registered.
23. The apparatus of claim 13, wherein the counterpart device registration and connection manager is further configured to register a counterpart device to be connected for performing at least one specific function by mapping the determined RDV to a captured image of the counterpart device and storing the same.
24. The apparatus of claim 23, wherein the counterpart device registration and connection manager is further configured to determine whether a plurality of RDVs that are within the predetermined error range of the determined RDV exist in a database, collect auxiliary information for identifying the counterpart device when a plurality of RDVs that are within the predetermined error range of the determined RDV exist in the database, and map and store the determined RDV and the collected auxiliary information to the captured image of the counterpart device,
wherein the auxiliary information comprises at least one of position information and bearings information.