US20150163574A1 - Display apparatus - Google Patents

Display apparatus Download PDF

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Publication number
US20150163574A1
US20150163574A1 US14/467,999 US201414467999A US2015163574A1 US 20150163574 A1 US20150163574 A1 US 20150163574A1 US 201414467999 A US201414467999 A US 201414467999A US 2015163574 A1 US2015163574 A1 US 2015163574A1
Authority
US
United States
Prior art keywords
opening area
display
sound
speaker
enclosure
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
US14/467,999
Other languages
English (en)
Inventor
Shunichi Hamadate
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba Lifestyle Products and Services Corp
Original Assignee
Toshiba Corp
Toshiba Lifestyle Products and Services Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Toshiba Lifestyle Products and Services Corp filed Critical Toshiba Corp
Assigned to KABUSHIKI KAISHA TOSHIBA reassignment KABUSHIKI KAISHA TOSHIBA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAMADATE, SHUNICHI
Publication of US20150163574A1 publication Critical patent/US20150163574A1/en
Priority to US14/801,200 priority Critical patent/US9930286B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Definitions

  • Embodiments described herein relate generally to a display apparatus with a built-in speaker.
  • Such display apparatuses are required to achieve expansive and clear sound quality by a speaker having a small output.
  • a display apparatus comprises an enclosure having a display portion and an internal space, and a speaker accommodated in the internal space and having a sound emitting surface directed in the opposite direction of the display portion.
  • the enclosure comprises a first opening area configured to emit sound from the speaker in the opposite direction of the display portion, and a second opening area configured to emit sound from the speaker in a lateral direction to the display portion.
  • the volume of the sound emitted from the first opening area is greater than the volume of the sound emitted from the second opening area.
  • FIG. 1 is a front view showing a display apparatus according to an embodiment
  • FIG. 2 is a cross-sectional view seen along line II-II of FIG. 1 ;
  • FIG. 3 is an explanatory drawing showing the display apparatus mounted on a wall surface from the direction of line of FIG. 1 ;
  • FIG. 4 is an explanatory drawing showing the display apparatus mounted on the wall surface from the direction of line IV-IV of FIG. 1 ;
  • FIG. 5 is an enlarged explanatory drawing showing a part of FIG. 4 ;
  • FIG. 6 is an explanatory drawing seen from the direction of line VI-VI of FIG. 5 ;
  • FIG. 7 is an explanatory drawing showing two examples of arrangement of the display apparatus on the wall surface
  • FIG. 8 is an explanatory drawing of a speaker
  • FIG. 9A is an explanatory drawing showing a mounting portion against the wall surface from a back surface side.
  • FIG. 9B is a schematic cross-sectional view taken through line B-B of FIG. 9A .
  • a display apparatus 10 is entirely formed in a horizontally elongated rectangular shape.
  • the display apparatus 10 comprises an enclosure 16 constituted by a display portion 12 arranged in a front side, which is the user's side, and a cabinet portion 14 which supports the display portion 12 from the back.
  • An internal space 18 ( FIG. 2 ) is formed inside the enclosure 16 .
  • a display module 24 comprising a display panel 20 and a chassis 22 formed of a lightweight metal such as aluminum and arranged in a horizontally outward portion and a back portion of the display panel 20 is provided in the display portion 12 .
  • the display panel 20 is formed by the display module 24 .
  • a front surface forming a display surface of the display panel 20 is covered with a transparent glass plate 26 .
  • the display surface of the display panel 20 is thereby visible from the outside and protected from a surrounding environment.
  • the display panel 20 can be formed of, for example, a tabular liquid crystal panel.
  • the display panel 20 may also be formed of various types of display panel such as a plasma display panel and an organic EL panel.
  • the display module 24 is integrally supported together with the glass plate 26 by the cabinet portion 14 .
  • the cabinet portion 14 comprises a front bezel 28 and a back cover 30 .
  • the front bezel 28 has a substantially L-shaped cross section formed by a front plate portion 28 a abutting on an outer periphery of the glass plate 26 and a side plate portion 28 b extending from an outer edge of the front plate portion 28 a to a back surface side.
  • the front bezel 28 is integrally connected to the back cover through the side plate portion 28 b.
  • the front plate portion 28 a of the front bezel 28 covers an entire outer periphery of the display portion 12 .
  • the width of the front plate portion 28 a i.e., the dimension between the inner periphery on a side of the glass plate 26 and the outer periphery on the external side is formed to be exceedingly less than the width of the display panel 20 . Openings, switches, etc., are not provided on the front plate portion 28 a.
  • the front plate portion 28 a has an approximately constant width along with a short side portion in a vertical direction and a long side portion in a horizontal direction as seen from a front face of the user's side.
  • the front plate portion 28 a has a curved cross section such that a middle region between the inner periphery and the outer periphery slightly protrudes ahead.
  • the side plate portion 28 b is formed to be thinner than the front plate portion 28 a to reduce weight.
  • the back cover 30 comprises a flat back plate portion 30 a positioned at the back of the display module 24 and a side plate portion 30 b extending from an outer periphery of the back plate portion 30 a.
  • the side plate portion 30 b is fixed on an outer surface of the side plate portion 28 b of the front bezel 28 . This provides a strong integral structure of the enclosure 16 and protects various electronic components arranged inside the internal space 18 .
  • Various necessary boards such as a control board connected to the display panel 20 to control the entire display apparatus 10 , a power supply circuit board, a circuit board for driving a speaker to be described later, etc., and electronic components are arranged in the internal space 18 defined between the display module 24 and the cabinet portion 14 .
  • These various boards can be held in the internal space 18 by the chassis 22 of the display module 24 directly or through variously formed supplemental brackets 32 .
  • the supplemental brackets 32 should be preferably formed of metal or appropriate engineering plastic, etc., to achieve reduction in weight and size.
  • a pair of right and left speakers 34 is arranged in the internal space 18 .
  • the pair of speakers 34 is arranged below, i.e., on a side adjacent to a lower long side portion, in positions which are bilaterally symmetrical when seen from the front side (viewer's side) in FIG. 1 .
  • Each of the speakers 34 is attached to the chassis 22 of the display module 24 by a supporting member 36 for fixing as shown in FIG. 2 .
  • Each of the speakers 34 is held to be opposite to an inner surface of the back plate portion 30 a in a state in which a sound emitting surface 34 a for emitting sound is directed in a direction of a back surface of the display apparatus 10 , i.e., the back plate portion 30 a of the back cover 30 .
  • the sound emitting surface 34 a is preferably arranged approximately parallel to the display panel 20 such that the maximal thickness of the entire display apparatus 10 , i.e., the distance between the front plate portion 28 a of the front bezel 28 and the back plate portion 30 a of the back cover 30 is reduced.
  • the width of the front bezel 28 or the dimension of the entire display apparatus 10 in the horizontal direction can be reduced by arranging the speakers 34 on the side of the back surface of the display module 24 in a position in which the speakers 34 overlap the display module 24 .
  • a pair of a first opening area 38 and a second opening area 40 is formed on the back plate portion 30 a of the back cover 30 to emit sound produced by each speaker 34 from the interior space 18 to the outside of the enclosure 16 .
  • the first opening area 38 is arranged in a position which is opposite to the sound emitting surface 34 a of the speaker 34 and which overlaps the sound emitting surface 34 a in a front-back direction.
  • the second opening area 40 is arranged in a position deviated from the sound emitting surface 34 a and adjacent to the side plate portion 30 b.
  • the first opening area 38 and the second opening area 40 comprise a plurality of through-holes made through the back cover 30 in a thickness direction.
  • the first opening area 38 comprises a first axis 38 a extending in a direction vertical to the sound emitting surface 34 a.
  • the second opening area 40 comprises a second axis 40 a extending in a direction intersecting the first axis 38 a.
  • the second axis 40 a can be extended in an appropriate direction if the second axis 40 a can convey sound from the speaker 34 to a lateral side of the enclosure 16 .
  • the second axis 40 a is preferably at an angle at least greater than 45 degrees and less than 90 degrees with respect to the first axis 38 a.
  • the main part of the sound from the speaker 34 passes through the first opening area 38 , the rest of the sound passes through the second opening area 40 , and the sound is thereby emitted to the outside of the enclosure 16 .
  • the sound emitted from the speaker 34 is distributed such that the sound from the first opening area 38 has a volume or a sound pressure greater than that of the sound from the second opening area 40 .
  • the opening area of the first opening area 38 in the first axis direction is preferably larger than the opening area of the second opening area 40 in the second axis direction, and, if the intensity level of the sound output from the speaker 34 is represented as 100 , the sound emitted from the cabinet portion 14 preferably includes the sound through the first opening area 38 in the range of 60 to 80 intensity levels and the sound through the second opening area in the range of 20 to 40 intensity levels.
  • a partition 44 adjacent to the sound emitting surface 34 a of each of the speakers 34 and configured to partition a sound emitting portion 42 communicating with the first opening area 38 and the second opening area 40 is provided in the interior space 18 of the enclosure 16 .
  • the partition 44 partitions the sound emitting portion 42 by contacting the inner surface of the back plate portion 30 a along the supporting member 36 of the speaker 34 , and prevent sound from escaping from the sound emitting portion 42 to the other portion in the interior space 18 .
  • the partition 44 can be formed of an appropriate material capable of preventing sound from escaping from the sound emitting portion 42 to the adjacent area in the interior space 18 , and is preferably formed of an elastic material such as a rubber material.
  • the sound emitting portion 42 itself can be formed of a foaming resin, etc., by arranging a thin-film material, etc., which prevents sound absorption on a side facing the sound emitting portion 42 .
  • the display apparatus 10 entirely has a flat structure and can be used as, for example, an electronic display apparatus capable of being hung on a wall W, etc., by an mounting fixture 46 , displaying an image on the display portion 12 and outputting sound from the speakers 34 .
  • images and characters can be displayed on the display portion 12 and sound such as music and speech can be output from the pair of built-in speakers 34 based on signals received from a communication terminal, a personal computer, etc., by wire or wireless means.
  • the display apparatus 10 can also be used for various purposes.
  • the display apparatus 10 can be used as a tablet type portable computer by incorporating a required operating system or used as a digital terrestrial TV receiver.
  • the power may be supplied from a built-in battery or from an external power source via a power supply cable.
  • the sound produced by the speaker 34 is emitted from the sound emitting surface 34 a to the sound emitting portion 42 , and output from the first opening area 38 and the second opening area 40 to the outside of the enclosure 16 .
  • Sound 48 output from the first opening area 38 is reflected off the wall W and emitted to the front surface side of the display apparatus 10 as reference numeral 48 a represents.
  • sound 50 is also emitted from the second opening area 40 to the lateral direction of the display apparatus 10 .
  • the sound 48 a output from the first opening area 38 and reflected off the wall W and the sound 50 output from the second opening area 40 can be thereby balanced and an expansive sound setting and clearness of the sound can be minutely adjusted.
  • FIG. 6 shows a state of the first opening area 38 and the second opening area 40 which are configured to balance the sound, in which the first opening area 38 comprise a number of circular punch holes and the second opening area 40 is formed as a vertically extending elongated slit.
  • the opening areas are not limited to this shape, but can be formed in an appropriate shape if the sound 48 output from the first opening area 38 along the first axis 38 a and the sound 50 output from the second opening area 40 in the second axis direction can be balanced.
  • the first opening area 38 can be formed as a slit or a rectangle and the second opening area 40 may be formed of punch holes.
  • FIG. 7 shows examples of structure to prevent the first opening area 38 from being blocked by the wall W.
  • a back surface of the back plate portion 30 a of the back cover 30 i.e., a surface opposite to the wall W is formed flat, and one or more projections 52 are projected from the back surface.
  • a central region of the back surface of the back plate portion 30 b is formed flat, and a side edge region on which the first opening area 38 is formed is formed as an inclined surface 54 which inclines from the central region to the side of the display portion 12 .
  • an expansive sound can be conveyed from the side surface of the display apparatus 10 to the outside after the sound output from the first opening area 38 is reflected off the wall W.
  • FIG. 8 exemplifies a shape of the sound emitting surface 34 a of the speaker 34 .
  • the sound emitting surface 34 a of the speaker 34 is formed in an oblong or ellipsoidal shape such that a long axis side of the oblong or ellipsoidal shape can be arranged along the vertical direction and the entire sound emitting surface 34 a can be arranged to be close to the lateral side portion of the display apparatus 10 .
  • the sound from the first opening area 38 and the sound from the second opening area 40 can be balanced even if the size of the display portion 12 or the enclosure 16 is larger.
  • a mounting hole 56 comprising a small diameter portion and a large diameter portion may be arranged in the back plate portion 30 a of the back cover 30 .
  • a supplemental fixture 58 for reinforcing the mounting hole 56 can be fixed to a structural member such as the chassis 22 .
  • the mounting fixture 46 can thereby be attached through the mounting hole 56 and detachably fixed to the wall W.
  • four mounting holes 56 are preferably formed in the back surface of the display apparatus 10 .
  • the display apparatus 10 can be laid on a desk, etc., with the back face directly touching the desk without using the mounting fixture 46 .
  • the sound output from the first opening area 38 can be reflected off the top surface of the desk, emitted as the reflected sound 48 a, and balanced with the sound 50 from the second opening area 40 .
  • the lower edge of the enclosure 16 may be supported not by the mounting hole 56 and the mounting fixture 46 , but by an appropriate supporting arm.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Microelectronics & Electronic Packaging (AREA)
US14/467,999 2013-12-05 2014-08-25 Display apparatus Abandoned US20150163574A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/801,200 US9930286B2 (en) 2013-12-05 2015-07-16 Display apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-251797 2013-12-05
JP2013251797A JP6010013B2 (ja) 2013-12-05 2013-12-05 表示装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/801,200 Continuation US9930286B2 (en) 2013-12-05 2015-07-16 Display apparatus

Publications (1)

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US20150163574A1 true US20150163574A1 (en) 2015-06-11

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Application Number Title Priority Date Filing Date
US14/467,999 Abandoned US20150163574A1 (en) 2013-12-05 2014-08-25 Display apparatus
US14/801,200 Active 2035-06-28 US9930286B2 (en) 2013-12-05 2015-07-16 Display apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
US14/801,200 Active 2035-06-28 US9930286B2 (en) 2013-12-05 2015-07-16 Display apparatus

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US (2) US20150163574A1 (enExample)
JP (1) JP6010013B2 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170041705A1 (en) * 2015-08-06 2017-02-09 Acer Inc. Speaker and Electronic Device Having the Speaker
WO2021137423A1 (en) * 2019-12-31 2021-07-08 Samsung Electronics Co., Ltd. Display apparatus
US11457298B2 (en) * 2018-12-26 2022-09-27 Sony Group Corporation Display device
US20220320458A1 (en) * 2019-07-17 2022-10-06 Lg Electronics Inc. Display device
EP4118839A4 (en) * 2020-03-10 2024-02-28 Sonos, Inc. Audio device transducer array and associated systems and methods

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7126142B2 (ja) * 2018-06-29 2022-08-26 パナソニックＩｐマネジメント株式会社 情報端末装置
CN111316193B (zh) * 2018-09-18 2023-09-15 谷歌有限责任公司 显示助理设备
JP6674116B1 (ja) * 2018-09-28 2020-04-01 富士通クライアントコンピューティング株式会社 電子機器
CN118612633A (zh) * 2018-10-08 2024-09-06 谷歌有限责任公司 显示助理设备中的扬声器组件
KR102593275B1 (ko) 2018-11-15 2023-10-25 삼성전자주식회사 디스플레이장치
CN112188356B (zh) * 2019-07-05 2022-10-14 荣耀终端有限公司 一种扬声器模组与电子设备
KR102794749B1 (ko) * 2019-12-31 2025-04-14 삼성전자주식회사 디스플레이 장치 및 디스플레이 장치의 음향 출력 방법
CN113497845B (zh) * 2020-04-02 2022-07-19 华为技术有限公司 一种电子设备

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US6324052B1 (en) * 1996-09-03 2001-11-27 New Transducers Limited Personal computing devices comprising a resonant panel loudspeaker
JPH11331733A (ja) * 1998-05-19 1999-11-30 Citizen Watch Co Ltd 携帯型液晶表示装置
US6758303B2 (en) 2002-10-31 2004-07-06 Motorola, Inc. Electronic device having a multi-mode acoustic system and method for radiating sound waves
JP4427301B2 (ja) * 2003-08-21 2010-03-03 株式会社東芝 ノート型のポータブルコンピュータ
US7630491B1 (en) 2006-01-31 2009-12-08 Kyocera Wireless Corp. Speaker enhancer and method of use
JP4606397B2 (ja) * 2006-09-27 2011-01-05 シャープ株式会社 表示装置
JP5084945B2 (ja) 2011-01-07 2012-11-28 シャープ株式会社 表示装置

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170041705A1 (en) * 2015-08-06 2017-02-09 Acer Inc. Speaker and Electronic Device Having the Speaker
EP3133830A1 (en) * 2015-08-06 2017-02-22 ACER Inc. Speaker and electronic device having the speaker
US9838778B2 (en) * 2015-08-06 2017-12-05 Acer Inc. Speaker and electronic device having the speaker
US11457298B2 (en) * 2018-12-26 2022-09-27 Sony Group Corporation Display device
US20220320458A1 (en) * 2019-07-17 2022-10-06 Lg Electronics Inc. Display device
US11770951B2 (en) * 2019-07-17 2023-09-26 Lg Electronics Inc. Display device
WO2021137423A1 (en) * 2019-12-31 2021-07-08 Samsung Electronics Co., Ltd. Display apparatus
US11347259B2 (en) 2019-12-31 2022-05-31 Samsung Electronics Co., Ltd. Display apparatus
US11630482B2 (en) 2019-12-31 2023-04-18 Samsung Electronics Co., Ltd. Display apparatus
EP4118839A4 (en) * 2020-03-10 2024-02-28 Sonos, Inc. Audio device transducer array and associated systems and methods

Also Published As

Publication number Publication date
JP2015109575A (ja) 2015-06-11
US9930286B2 (en) 2018-03-27
JP6010013B2 (ja) 2016-10-19
US20150326816A1 (en) 2015-11-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KABUSHIKI KAISHA TOSHIBA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAMADATE, SHUNICHI;REEL/FRAME:033605/0114

Effective date: 20140820

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE