Patents by Inventor Jae-hoon Sim

Jae-hoon Sim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050280925
    Abstract: A magnetic recording and reading apparatus includes a noise preventing member provided to at least one of a deck and a holder to cover an upper side of a head drum. Noise generated by the contact between the head drum and the magnetic tape is substantially prevented from being transmitted outside of the magnetic recording and reading apparatus and to a microphone in recording operation, thereby improving the quality of recorded sound.
    Type: Application
    Filed: May 23, 2005
    Publication date: December 22, 2005
    Inventors: Myoung-joon Kim, Dong-seok Lee, Byeng-bae Park, Jae-hoon Sim, Seung-woo Lee, Hyeong-seok Choi, Jeong-hyeob Oh
  • Publication number: 20050280950
    Abstract: A head drum assembly for a magnetic recording/reproducing apparatus includes a shaft on which a rotary drum is rotatably supported, and a fixed drum firmly fixed to the shaft and supported on a main deck. The fixed drum includes a fixed drum body facing the rotary drum and a fastening part extending from a lower side of the fixed drum body. The fastening part is supported by the main deck. A flange part extends from an outer circumference of the fastening part and is coupled to the main deck by screws.
    Type: Application
    Filed: June 15, 2005
    Publication date: December 22, 2005
    Inventors: Myoung-joon Kim, Hyeong-seok Choi, Jeoung-seon Kim, Jae-hoon Sim
  • Publication number: 20050280949
    Abstract: A head-drum assembly for a magnetic recording/reproducing apparatus, and a method of manufacturing a head/drum assembly, with a simplified setup structure of a fixed drum on a main chassis are provided, where a shaft is inserted into a fixed drum and has a connection unit at least a portion of which protrudes from the lower part of the fixed drum, a rotary drum is disposed on the upper part of the fixed drum and supported by the shaft to be rotatable, a drum base has an opening which the portion of the connection unit penetrates, and a connection housing is connected with the portion of the connection unit on, for example, opposite surface of the drum base.
    Type: Application
    Filed: June 14, 2005
    Publication date: December 22, 2005
    Inventors: Jae-Hoon Sim, Jun-Young Kim, Hyeong-Seok Choi, Jeong-Seon Kim
  • Publication number: 20050280929
    Abstract: A deck plate integrally forming the drum base and the guide rail, and a magnetic recording/playing apparatus having the same are disclosed. The deck plate has a chassis integrally forming a drum base for slopingly supporting a head drum assembly in a predetermined angle together with a guide rail for guiding at least one pole base assembly.
    Type: Application
    Filed: April 20, 2005
    Publication date: December 22, 2005
    Inventors: Jae-Hoon Sim, Jae-Kab Seo, Myoung-Joon Kim, Jun-Young Kim, Bong-Joo Kim, Hyeong-Seok Choi
  • Publication number: 20050280930
    Abstract: A cassette tape ejecting apparatus has a chassis having a pin boss, a hook hole and a locking groove formed as a single body, a cassette housing installed on the chassis to be transferred to a tape insertion position and a tape ejection position, a cassette tape being mounted thereon, a locking lever being installed on the cassette housing, and having a locking protrusion hooked on the looking groove of the chassis when the cassette housing is transferred to the tape insertion position, an eject lever installed on the chassis to be rotated through the pin boss of the chassis in the forward/backward direction unlocks the locking protrusion from the locking groove of the chassis to eject the cassette tape, and a cassette switch turned on/off by the forward/backward rotation of the eject lever, for detecting ejection of the cassette tape.
    Type: Application
    Filed: February 22, 2005
    Publication date: December 22, 2005
    Inventors: Byeng-Bae Park, Jun-Young Kim, Jeong-Hyeob Oh, Jae-Hoon Sim, Seung-Woo Lee, Hyeong-Seok Choi
  • Publication number: 20040150908
    Abstract: A pole base assembly for a magnetic recording/reproducing apparatus for guiding a tape drawn from a reel through a predetermined path in parallel or substantially in parallel toward a lead surface of a head drum. The pole base assembly comprises a pole base disposed to approach and retreat from a side of the head drum when the tape is loaded and unloaded, respectively, a sloping pole disposed to be sloped on the pole base, to be parallel or substantially parallel to the lead surface of the head drum, for guiding the tape fed to the head drum at a predetermined angle, to be parallel to the lead surface, and a supporting holder disposed on the pole base, and having a sloping part to support the sloping pole to be inclined at a predetermined angle.
    Type: Application
    Filed: August 14, 2003
    Publication date: August 5, 2004
    Inventors: Jae-hoon Sim, Hyeong-seok Choi, Byeong-bae Park
  • Publication number: 20040136111
    Abstract: A tape guide device for a magnetic recording/reproducing apparatus includes a pole base assembly to guide a tape supplied from a supply reel and passed through a predetermined path to be moved horizontally to a read surface of a head drum. The pole base assembly includes a pole base installed adjacently to or separately from one side of the head drum during a loading/unloading operation of the tape. The pole base assembly also includes a pole unit including a spiral flange inclined to the pole base to be in a horizontal direction to the read surface of the head drum, to guide the tape entering the head drum to be inclined at a predetermined angle and positioned in the horizontal direction to the read surface.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 15, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung-Woo Lee, Bong-Joo Kim, Do-Young Choi, Jae-Hoon Sim, Young-Ho Cho, Jeong-Hyeob Oh, Hyeong-Seok Choi
  • Publication number: 20040125500
    Abstract: A driving apparatus for loading/unloading a pair of pole-base assemblies that are reciprocated along a guide rail formed on a main deck to move a magnetic tape to contact to a head drum. The driving apparatus includes a first and a second link member, each connected with one end to each pole-base assembly, a first and a second loading gears, each connected to the other end of the first and the second link member, and being rotated in association with each other; and a main gear which is rotated by the power received from a driving motor mounted on the main deck and selectively engaged with the first loading gear upon rotation thereof. The main gear is rotated in association with one of the loading gears within a desired rotational range upon rotation thereof, so as to transfer power for loading/unloading the pole-base assembly.
    Type: Application
    Filed: November 18, 2003
    Publication date: July 1, 2004
    Inventors: Bong-Joo Kim, Jae-Hoon Sim, Jun-Young Kim
  • Patent number: 6736351
    Abstract: A tape guide device for a magnetic recording/reproducing apparatus includes a pole base assembly to guide a tape supplied from a supply reel and passed through a predetermined path to be moved horizontally to a read surface of a head drum. The pole base assembly includes a pole base installed adjacently to or separately from one side of the head drum during a loading/unloading operation of the tape. The pole base assembly also includes a pole unit including a spiral flange inclined to the pole base to be in a horizontal direction to the read surface of the head drum, to guide the tape entering the head drum to be inclined at a predetermined angle and positioned in the horizontal direction to the read surface.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: May 18, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-woo Lee, Bong-joo Kim, Do-young Choi, Jae-hoon Sim, Young-ho Cho, Jeong-hyeob Oh, Hyeong-seok Choi
  • Publication number: 20040062170
    Abstract: A deck mechanism for a magnetic recording/reproducing apparatus comprises a main deck provided with a head drum and a capstan motor; a sub-deck installed on the main deck to be loaded/unloaded, the sub-deck being provided with a pair of reel discs, onto which tape reels of a tape cassette are seated; a pole base loading unit for taking out and guiding a tape to be in contact with a side of the head drum when the sub-deck is loaded and guides; a pinch roller unit for compressing the tape against a spindle of the capstan motor when the sub-deck is loaded; a brake unit for selectively braking one of the roll discs; a main sliding member mounted on the main deck to be capable of reciprocatingly sliding, the main sliding member controlling the driving of the pinch roller unit; and a main cam gear mounted on the main deck to be capable of rotating, the main cam gear causing operating all of the sub-deck, the pole base loading unit, the brake unit, and the main sliding member to perform linked movements while the ma
    Type: Application
    Filed: September 15, 2003
    Publication date: April 1, 2004
    Inventors: Do-Young Choi, Jeong-Hyeob Oh, Jun-Young Kim, Jae-Kab Seo, Jae-Hoon Sim, Bong-Joo Kim, Myong-Joon Kim, Byeng-Bae Park, Young-Ho Cho, Hyeong-Seok Choi
  • Publication number: 20030132331
    Abstract: An improved magnetic tape guiding device for use with a magnetic tape transport system of a tape recorder and the like, and a method for using the same. The magnetic tape guiding system of the tape recorder transport system has a supply reel pole base assembly having a slant pole with a first guide unit having portions formed at both ends of the slant pole to function as a conventional roller for regulating upward and downward movement of the upper and lower edges of a moving magnetic tape, and a tension pole assembly having a tension pole with a second guide unit having portions formed at both ends of the tension pole to function as a conventional impedance roller for regulating upward and downward movement of the upper and lower edges of the moving magnetic tape. This arrangement can thus achieve 2-dimensional plane-traveling of the magnetic tape while also reducing the number of the parts of the guiding system.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 17, 2003
    Inventors: Seung-Woo Lee, Bong-Joo Kim, Do-Young Choi, Jae-Hoon Sim, Byeng-Bae Park, Young-Ho Cho, Jeong-Hyeob Oh, Hyeong-Seok Choi
  • Publication number: 20030132340
    Abstract: A tape guide device for a magnetic recording/reproducing apparatus includes a pole base assembly to guide a tape supplied from a supply reel and passed through a predetermined path to be moved horizontally to a read surface of a head drum. The pole base assembly includes a pole base installed adjacently to or separately from one side of the head drum during a loading/unloading operation of the tape. The pole base assembly also includes a pole unit including a spiral flange inclined to the pole base to be in a horizontal direction to the read surface of the head drum, to guide the tape entering the head drum to be inclined at a predetermined angle and positioned in the horizontal direction to the read surface.
    Type: Application
    Filed: October 17, 2002
    Publication date: July 17, 2003
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung-woo Lee, Bong-Joo Kim, Do-Young Choi, Jae-Hoon Sim, Young-Ho Cho, Jeong-Hyeob Oh, Hyeong-Seok Choi
  • Patent number: 5744260
    Abstract: A battery pack is disclosed, in which terminal members can be fixed to cases, and the entire volume of which can be reduced. The battery pack has a pair of battery cells electrically connected in series to each other. A pair of cases receives the battery cells and each case includes a lid, a cell receiving portion, and a connecting portion. A pair of terminal members is connected to the positive and negative electrodes of the battery cells and is fixed to a case in such a way that they are externally exposed. According to the battery pack, as the battery cells are received so that they are exposed outside the cases, its total volume can be reduced. Further, the terminal members can be easily fixed to the cases.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: April 28, 1998
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Jae-Hoon Sim
  • Patent number: 5721401
    Abstract: Disclosed is a sub-woofer module which has a simple construction and provides a good low-frequency bass in compliance with an audience's taste. The sub-woofer module has an enclosure, a baffle board which separates the enclosure into first and second chambers, and a speaker coupled to the baffle board. The baffle board is engaged with a screw shaft and moves upward and backward along the screw shaft to vary the volume of the first and second chambers. A reverse-conical cap is disposed above the enclosure to permit the upwardly projected sound to be projected in 360 degrees, and a conical base is disposed below the enclosure to permit the downwardly projected sound to be projected in 360 degrees. The audience can listen to sound of the same quality regardless their position in relation to the sub-woofer module.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: February 24, 1998
    Assignee: Daewood Electronics Co. Ltd.
    Inventor: Jae-Hoon Sim
  • Patent number: 5709963
    Abstract: A battery pack is disclosed, in which terminal members can be fixed to cases, and which its entire volume can be reduced. The battery pack comprises a pair of battery cells electrically connected in series to each other, a pair of cases receiving the battery cells and including a lid, a cell receiving portion, and a connecting portion respectively, and a pair of terminal members connected to electrodes of the battery cells and fixed to a case so that they are externally exposed. According to the battery pack, as the battery cells are received so as to be exposed outside the cases, its total volume can be reduced. In addition, it has another advantage of fixing the terminal members to the cases positively and easily.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: January 20, 1998
    Assignee: Daewoo Electronics Co., Inc.
    Inventor: Jae-Hoon Sim