US20060071141A1 - Location controller for tv receiver - Google Patents

Location controller for tv receiver Download PDF

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Publication number
US20060071141A1
US20060071141A1 US10/535,972 US53597205A US2006071141A1 US 20060071141 A1 US20060071141 A1 US 20060071141A1 US 53597205 A US53597205 A US 53597205A US 2006071141 A1 US2006071141 A1 US 2006071141A1
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United States
Prior art keywords
frame
tv receiver
movable block
driving motor
rotatably
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/535,972
Inventor
Tae Kang
Original Assignee
Kang Tae W
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Filing date
Publication date
Priority to KR10-2202-00076215 priority Critical
Priority to KR20020076215A priority patent/KR100521359B1/en
Application filed by Kang Tae W filed Critical Kang Tae W
Priority to PCT/KR2003/002181 priority patent/WO2004051991A1/en
Publication of US20060071141A1 publication Critical patent/US20060071141A1/en
Application status is Abandoned legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20Undercarriages with or without wheels
    • F16M11/24Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/18Heads with mechanism for moving the apparatus relatively to the stand
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16MFRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES OR APPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS
    • F16M13/00Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

Abstract

The present invention relates to a position controller in a TV receiver for adjusting its height and angle. The apparatus includes a frame 10 extended along a wall 1 up and down, a movable block 20 supported to the frame to move along the frame 10 whereto TV receiver 200 is attached, and an elevating means 600 for elevating the movable block 20 along the frame 10. The elevating means 600 includes a screw axis 11 supported to the frame 10 to be elevated along the frame 10 and coupling the movable block 20, guide rods 12, 13 supported to the frame 10 in a line with the screw axis 11, and a driving motor 400 for rotating the screw axis 11. The driving motor 400 has proximity sensors at the both ends of the frame 10 to stop the operation of the driving motor 400 if the movable block 20 closes the both ends of the frame 10. The driving motor 400 is also controlled with the remote controller 310. An angular controller 350 adjusts an angle of the TV receiver 200 against the movable block 20. Thus a viewer can easily adjust the height and angle of the TV receiver.

Description

    TECHNICAL FIELD
  • The present invention relates to a position control apparatus in a TV receiver. More particularly, the present invention relates to a position control apparatus in a TV receiver for moving the TV receiver upward and downward and making the receiver rotary, thereby allowing a viewer to watch a TV in a comfortable state.
  • BACKGROUND ART
  • Recently, with a trend of high functions, TV receiver products having special functions rather than simple functions have been developing. In particular, consumers increasingly desire to watch TV in a more comfortable state and to hear more realistic acoustic sound.
  • Therefore, functions for satisfying the consumers needs have been developed. The television may be classified into a CRT type TV having a Braun-tube and a PDP type TV made of a thin film. In recent years, a PDP TV that has a compact size and is irrespective of a location has been spotlighted as a next-generation TV.
  • However, a stand type PDP television has to be disposed on a table, etc. like an existing CRT television. Thus, it has a problem that it does not utilize the space properly. For this reason, a wall tapestry type PDP TV has recently been used a lot.
  • FIG. 1 is a schematic view illustrating the structure for controlling an angle of a TV receiver according to a prior art.
  • Referring to FIG. 1, the conventional PDP television includes an angular control unit 112 fixed to a wall 1 and having a plurality of fixing grooves 113, a stationary bracket 110 having a fitting groove 114 at its bottom, a rotary bracket 120 having one side attached to a PDP television and the bottom inserted into the fitting groove 114 of the stationary bracket 110, and a link member 130 having one front end hinged to the rotary bracket 120 and the other front end inserted into the angular control unit 112 of the stationary bracket 110.
  • Therefore, in a state where the stationary bracket 110 is fixed to the wall and the PDP television is attached to the rotary bracket 120, the rotary bracket 120 is inserted into the fitting groove 114 of the stationary bracket 110 and the one front end of the link member 130 connected to the rotary bracket 120 is inserted into the fixing groove 113 of the stationary bracket 110, Thereby, an angle of the PDP television can be controlled from the wall.
  • In such a television, however, in order to control the angle of the television, a viewer must manipulate the television directly and manually. This makes the viewer troublesome.
  • Furthermore, as the stationary bracket 110 is firmly fixed to the wall, it is impossible to adjust the height of the television.
  • DISCLOSURE OF INVENTION
  • Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a position control apparatus in a TV receiver that allows a viewer to adjust the height of the TV receiver.
  • Another object of the present invention is to provide a position control apparatus in a TV receiver that remotely controls the height and angle of the TV receiver.
  • To achieve the above objects, according to the present invention, there is provided a position control apparatus in a TV receiver, comprising a frame that is extended along a wall upward and downward; a movable block that is supported to the frame so that it can move along the frame upward and downward, wherein a TV receiver is attached to the movable block; and an elevating means for elevating the movable block against the frame.
  • In the above, the elevating means comprises a screw axis that is supported to the frame so that it is elevated along the frame upward and downward, wherein the movable block is coupled to the screw axis; guide rods supported to the frame in line with the screw axis, wherein the movable block is movably coupled to the guide rods; and a driving motor for rotatably driving the screw axis, whereby the movable block is elevated by means of forward and backward rotary driving of the driving motor.
  • Another elevating means comprises a screw axis having guide slot holes lengthily formed on the frame and supported to the frame rotatably upward and downward, wherein movable blocks are coupled to the screw axis; a guide roller rotatably coupled to the movable blocks and slidingly coupled to the guide slot holes; and a driving motor for rotatably driving the screw axis, whereby the movable block is elevated by means of forward and backward rotary driving of the driving motor.
  • Still another elevating means comprises first and second rotating bodies having guide slot holes lengthily formed in the frame, wherein the first and second rotating bodies are rotatably disposed in the upper and lower ends of the frame, respectively; track bodies that revolve on the first and second rotating bodies in an infinite track and are fixed to the movable block; and a driving motor for rotatably driving the first and second rotating bodies to move the track bodies rotatably upward and downward, whereby the movable block is elevated by forward and backward rotary driving of the driving motor.
  • Furthermore, the position control apparatus in the TV receiver further comprises an angular control means for controlling an angle of the TV receiver against the movable block.
  • In the above, a rear lower side of the TV receiver and a lower side of the movable block corresponding to it are rotatably coupled and wherein the angular control means comprises a rotary central body rotated by a rotary motor and having a vertical protrusion at its end; a link member having one end rotatably coupled to the end of the vertical protrusion; and a lever member having one end rotatably connected to the other end of the link member and the other end fixed on the TV receiver.
  • Further, the position control apparatus in the TV receiver further comprises a remote controller for remotely controlling the driving motor and the rotary motor.
  • According to the present invention, the position control apparatus in the TV receiver allows a viewer to easily control the height and angle of the TV receiver using the elevating means and the angular control means.
  • BRIEF DESCRIPTION OF DRAWINGS
  • Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings in which:
  • FIG. 1 is a schematic view illustrating the structure for controlling an angle of a TV receiver according to a prior art;
  • FIG. 2 shows a room where a position control apparatus in a TV receiver is installed according to the present invention;
  • FIG. 3 is a schematic view shown to explain the connection relationship between the TV receiver and the movable block;
  • FIGS. 4 a, 4 b and 4 c are perspective views illustrating angular control units 350, 351 and 352;
  • FIG. 5 a and FIG. 5 b show how the angle of the TV receiver 200 is controlled;
  • FIG. 6 is a schematic view illustrating an elevating means 600 according to one embodiment of the present invention;
  • FIG. 7 and FIG. 8 are schematic views illustrating elevating means 700 and 800 according to another embodiment of the present invention; and
  • FIG. 9 is a schematic view illustrating an elevating means 900 according to still another embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION
  • The present invention will now be described in detail in connection with preferred embodiments with reference to the accompanying drawings.
  • A position control apparatus in a TV receiver allows a viewer to easily control the height and angle of the TV receiver to a viewer's taste.
  • One example of such a position control apparatus in a TV receiver will now be described in detail with reference to FIG. 2 to FIG. 6. The apparatus includes a frame 10 that is extended along a wall 1 upward and downward, a movable block 20 that is supported to the frame so that it can move along the frame 10 upward and downward, wherein a TV receiver 200 is attached to the movable block 20, and an elevating means 600 for elevating the movable block 20 against the frame 10.
  • The elevating means 600 (see FIG. 6) includes a screw axis 11 that is supported to the frame 10 so that it is elevated along the frame 10 upward and downward, wherein the movable block 20 is coupled to the screw axis 11, guide rods 12 and 13 supported to the frame 10 in line with the screw axis 11, wherein the movable block 20 is movably coupled to the guide rods 12 and 13, and a driving motor 400 for rotatably driving the screw axis 11.
  • The driving motor 400 has a decelerator 410 for control the screw axis 11 to rotate at an adequate rate.
  • In such elevating means 600, the movable block 20 is elevated along the guide rods 12 and 13 and the screw axis 11 according to forward and backward rotary driving of the driving motor 400.
  • At this time, the driving motor 400 has a proximity sensor (not shown) at upper and lower ends of the frame 10. Thus, if the movable block 20 approaches the upper and lower ends of the frame 10, the proximity sensor is driven to stop operating the driving motor 400. Further, the driving motor 400 is also remotely controlled by the remote controller 310. Accordingly, a viewer 300 can adjust the high and the low of the TV receiver 200 to his or her taste.
  • Furthermore, the position control apparatus in the TV receiver according to the present invention has an angular control means 350 for controlling the angle of the TV receiver 200 against the movable block 20, as shown in FIG. 4 a. The angular control means 350 includes a rotary central body 30, a vertical protrusion 31 and a link member 32. Meanwhile, FIG. 4 b shows another angular control means 351. The angular control means 351 shown in FIG. 4 b includes a disk type crank axis having a different shape from the rotary central body 30 shown in FIG. 4 a. Therefore, although a rotary motor 500 does not rotate forward and backward, a viewing angle of the TV receiver 200 can be controlled by 360° rotation of the disk type crank axis. FIG. 4 c shows still another angular control means 352. The angular control means 352 has a linear motor that is directly driven in a straight line instead of the rotary motor 500 shown in FIGS. 4 a and 4 b. As the linear motor is used, the viewing angle of the TV receiver 200 can be adjusted even if the rotary central body 30, the vertical protrusion 31 and the link member 32 as shown in FIG. 4 a are not used.
  • There are shown the angular control means 350, 351 and 352 in FIG. 3, FIG. 4 a to FIG. 4 c, FIG. 5 a and FIG. 5 b. Of them, only the angular control means 350 shown in FIG. 4 a will be below described in order to avoid redundancy.
  • The TV receiver 200 and the movable block 20 corresponding to it are rotatably coupled by the coupling of reciprocal hinge pieces 21 and 201. The angular control means 350 includes a rotary central body 30 rotated by the rotary motor 500 and having a vertical protrusion 31 at its end, a link member 32 having one end rotatably coupled to the end of the vertical protrusion 31, and a lever member 33 having one end rotatably connected to the other end of the link member 32 and the other end fixed on the TV receiver 200.
  • As shown in FIG. 5 a and FIG. 5 b, such angular control means 350 rotates around the hinge pieces 201 and 21 by means of a joint action of the rotary central body 30, the link member 32 and the lever member 33 due to forward and backward driving of the rotary motor 500. Likewise, the rotary motor 500 is remotely controlled by the remote controller 310 that has a light-emitting sensor. Accordingly, the viewer 300 can adjust the viewing angle of the TV receiver 200 to one's taste.
  • Although it has been described that the viewing angle of the TV receiver 200 is adjusted upward and downward, those skilled in the art will appreciate that the viewing angle of the TV receiver 200 can also be adjusted right and left.
  • By remotely controlling the driving motor 400 and the rotary motor 500 forward and backward using the remote controller 310, it is possible to adjust the height and angle of the TV receiver 200.
  • FIG. 7 and FIG. 8 show another embodiments of the elevating means. The elevating means 700 and 800 includes a screw axis 11 having guide slot holes 14 and 15 lengthily formed on the frame 10 and supported to the frame 10 rotatably upward and downward, wherein movable blocks 20 a and 20 b are coupled to the screw axis 11, a guide roller 16 rotatably coupled to the movable blocks 20 a and 20 and slidingly coupled to the guide slot holes 14 and 15, and a driving motor 400 for rotatably driving the screw axis 11.
  • The movable block 20 a is coupled to the screw axis 11 and the movable block 20 b has the TV receiver 200 installed thereon. Furthermore, the driving motor 400 has a decelerator 410 for rotating the screw axis 11 at an adequate rate.
  • The elevating means 700 and 800 make the elevating operation of the movable block 20 further smooth by means of the guide roller 16 that moves along the guide slot holes 14 and 15.
  • Furthermore, in the present invention, the angle of the TV receiver 200 can be adjusted against the movable block 20, like in the above embodiment. In this case, as its construction is same as that of the previous embodiment, detailed description on it will be omitted for simplicity. Further, the driving motor 400 and the rotary motor 500 have proximity sensors (not shown) at the upper and lower ends of the frame 10. Thus, if the movable block 20 approaches the upper and lower ends of the frame 10, proximity sensors are driven to stop operating the driving motor 400 and the rotary motor 500. Further, the driving motor 400 and the rotary motor 500 are also remotely controlled by the remote controller 310.
  • FIG. 9 shows still another embodiment of the elevating means. An elevating means 900 includes first and second rotating bodies 17 and 18 having guide slot holes 14 and 15 lengthily formed in the frame 10, wherein the first and second rotating bodies 17 and 18 are rotatably disposed in the upper and lower ends of the frame 10, respectively, track bodies 19 a and 19 b that revolve on the first and second rotating bodies 17 and 18 in an infinite track and are fixed to the movable block 20, and a driving motor 400 for rotatably driving the first and second rotating bodies 17 and 18 to move the track bodies 19 a and 19 b rotatably upward and downward.
  • The first and second rotating bodies 17 and 18 may be chain sprockets and the track bodies 19 a and 19 b may be chains. Furthermore, the first and second rotating bodies 17 and 18 may be pulleys and the track bodies 19 a and 19 b may be ropes.
  • Such elevating means 900 is designed to move along with upward and downward movements of the track bodies 19 a and 19 b by the driving motor 400 and the decelerator 410 since the movable block 20 is fixed to the track bodies 19 a and 19 b being chains or ropes.
  • Even in this embodiment, the angle of the TV receiver 200 against the movable block 20 can be adjusted. In this case, as such construction is same as the above construction, detailed description on it will be omitted for simplicity. Furthermore, in the driving motor 400 and the rotary motor 500, the proximity sensors (not shown) are disposed in the upper and lower ends of the frame 10. Thus, if the movable block 20 approaches the upper and lower ends of the frame 10, the proximity sensors are driven to stop operating the driving motor 400 and the rotary motor 500. Further, the driving motor 400 and the rotary motor 500 are also remotely controlled by the remote controller 310.
  • It is to be understood that the position control apparatus in the TV receiver 200 according to the present invention is not limited to the above embodiments, but may be modified in various ways without departing from the scope and spirit of the present invention. For example, it has been described above that the angular control means is designed to rotate the TV receiver by means of a joint action of the rotary motor. However, the movable block may be fixed to a cylinder and the TV receiver may be connected to the end of a cylinder rod, so that the TV receiver can be rotated by the operation of the cylinder.
  • INDUSTRIAL APPLICABILITY
  • According to the present invention described above, the height of a TV receiver can be adjusted by means of a driving motor that is remotely controlled. Therefore, the present invention has an effect that it can provide a viewer convenience.
  • Furthermore, according to the present invention, a viewer can adjust an angle of a TV receiver to one's taste.
  • While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

Claims (9)

1. A position control apparatus in a TV receiver, comprising:
a frame that is extended along a wall upward and downward;
a movable block that is supported to the frame so that it can move along the frame upward and downward, wherein a TV receiver is attached to the movable block; and
an elevating means for elevating the movable block against the frame.
2. The position control apparatus in the TV receiver as claimed in claim 1, wherein the elevating means comprises:
a screw axis that is supported to the frame so that it is elevated along the frame upward and downward, wherein the movable block is coupled to the screw axis;
guide rods supported to the frame in line with the screw axis, wherein the movable block is movably coupled to the guide rods; and
a driving motor for rotatably driving the screw axis, whereby the movable block is elevated by means of forward and backward rotary driving of the driving motor.
3. The position control apparatus in the TV receiver as claimed in claim 1, wherein the elevating means comprises:
a screw axis having guide slot holes lengthily formed on the frame and supported to the frame rotatably upward and downward, wherein movable blocks are coupled to the screw axis;
a guide roller rotatably coupled to the movable blocks and slidingly coupled to the guide slot holes; and
a driving motor for rotatably driving the screw axis,
whereby the movable block is elevated by means of forward and backward rotary driving of the driving motor.
4. The position control apparatus in the TV receiver as claimed in claim 1, wherein the elevating means comprises:
first and second rotating bodies having guide slot holes lengthily formed in the frame, wherein the first and second rotating bodies are rotatably disposed in the upper and lower ends of the frame, respectively:
track bodies that revolve on the first and second rotating bodies in an infinite track and are fixed to the movable block; and
a driving motor for rotatably driving the first and second rotating bodies to move the track bodies rotatably upward and downward,
whereby the movable block is elevated by forward and backward rotary driving of the driving motor.
5. The position control apparatus in the TV receiver as claimed in any one of claims 1 to 4, further comprising an angular control means for controlling an angle of the TV receiver against the movable block.
6. The position control apparatus in the TV receiver as claimed in claim 5, wherein a rear lower side of the TV receiver and a lower side of the movable block corresponding to it are rotatably coupled and
wherein the angular control means comprises:
a rotary central body rotated by a rotary motor and having a vertical protrusion at its end;
a link member having one end rotatably coupled to the end of the vertical protrusion; and
a lever member having one end rotatably connected to the other end of the link member and the other end fixed on the TV receiver.
7. The position control apparatus in the TV receiver as claimed in claim 6, further comprising a remote controller for remotely controlling the driving motor and the rotary motor.
8. The position control apparatus in the TV receiver as claimed in claim 5, wherein the angular control means is a linear motor.
9. The position control apparatus in the TV receiver as claimed in claim 6, wherein the rotary central body and the link member consists of a disk shape crank axis.
US10/535,972 2002-12-03 2003-10-17 Location controller for tv receiver Abandoned US20060071141A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR10-2202-00076215 2002-12-03
KR20020076215A KR100521359B1 (en) 2002-12-03 2002-12-03 A device for controlling a television position
PCT/KR2003/002181 WO2004051991A1 (en) 2002-12-03 2003-10-17 Location controller for tv receiver

Publications (1)

Publication Number Publication Date
US20060071141A1 true US20060071141A1 (en) 2006-04-06

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ID=36124618

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/535,972 Abandoned US20060071141A1 (en) 2002-12-03 2003-10-17 Location controller for tv receiver

Country Status (6)

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US (1) US20060071141A1 (en)
JP (1) JP2006509419A (en)
KR (1) KR100521359B1 (en)
CN (1) CN1714568A (en)
AU (1) AU2003269566A1 (en)
WO (1) WO2004051991A1 (en)

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EP2322838A1 (en) * 2008-05-27 2011-05-18 Changzhou New District Saien Electromechanical Equipment Co., Ltd. A tv set lifter
EP2322838A4 (en) * 2008-05-27 2012-03-21 Changzhou New Distr Saien Electromechanical Equipment Co Ltd A tv set lifter
US20100053466A1 (en) * 2008-09-02 2010-03-04 Masafumi Naka System and methods for television with integrated surround projection system
US8279357B2 (en) 2008-09-02 2012-10-02 Mitsubishi Electric Visual Solutions America, Inc. System and methods for television with integrated sound projection system
WO2010028592A1 (en) * 2008-09-09 2010-03-18 Sun Zhimin Television stand
CN101968157A (en) * 2010-09-14 2011-02-09 常州新区赛恩机电设备有限公司 Television stand
CN103062596A (en) * 2013-01-21 2013-04-24 河南工业职业技术学院 Rotating frame of remote control television
US9823551B2 (en) 2015-12-10 2017-11-21 Axis Ab Mounting bracket for mounting a monitoring camera

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CN1714568A (en) 2005-12-28
AU2003269566A1 (en) 2004-06-23
JP2006509419A (en) 2006-03-16
KR20040048472A (en) 2004-06-10
KR100521359B1 (en) 2005-10-14
WO2004051991A1 (en) 2004-06-17

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