Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Yun Sup Shin

Jin Yong Kim

Sang Woon Suh

Kyung Chan Park

Jeong Kyo Seo

Jeong Uk Lee

Yung Woo Jung

In Ho Choi

Mun C Joung

Do Hyeon Son

Mi Hyun Jung

Young Hwan Joo

Provided are a virtual optical input device capable of providing feedback and a method of controlling the same. In the method, a portion of an input means such as a finger, and a portion of a shadow of the input means generated by a light source are detected through image processing. Physical variations formed between them are used to detect the touch contact of the input means, calculate the position and motion of the input means, and provide the corresponding feedback.

Virtual optical input device with feedback and method of controlling the same

Provided are a virtual optical input device and a method of controlling the same. In the method, a portion of an input means such as a finger, and a portion of a shadow of the input means generated by a light source are detected through image processing. Physical variations formed between them are used to detect the touch contact of the input means, calculate the position of the input means, and input the corresponding command. Accordingly, it is possible to provide various input patterns.

Virtual optical input device for providing various types of interfaces and method of controlling the same

A recording medium, a recording/reproducing apparatus, and a recording/reproducing method are disclosed. The apparatus uses the number of record layers contained in a recording medium and a multi-wavelength light source including a plurality of optical signals having different wavelengths, and irradiates an optical signal emitted from a light source on each recording medium according to wavelengths of the light beams. As a result, the apparatus can effectively gain access to the recording medium including a plurality of record layers, such that it can simultaneously record/reproduce data in/from the recording medium.

Optical pickup, recording/reproducing apparatus and recording/reproducing method

A method for reproducing an optical recording medium includes: determining a kind of optical pick-up device placed to reproduce an optical recording medium; detecting a push-pull signal or a pre-pit signal of an inserted recording medium according to the kind of optical pick-up device; and reproducing the optical recording medium by using an optical pick-up device from which the push-pull signal or the pre-pit signal is detected.

Method for reproducing optical recording medium

A high-density read-only optical disc, and an optical disc apparatus and method using the same. The apparatus and method record data on a lead-in area of a high-density read-only optical disc such as a BD-ROM (Blu-ray disc ROM (Read Only Memory)) in the form of pre-pit strings associated with an HFM (High-Frequency Modulated) groove applied to a BD-RW (Blu-ray Disc Rewritable). Moreover, the apparatus and method continuously apply the same tracking servo operation to an entire area of the same high-density read-only optical disc or rewritable optical disc. Therefore, the apparatus and method can simplify an algorithm for controlling a plurality of tracking servo operations, and avoid an increased size of the optical disc apparatus.

High-density read-only optical disc, and optical disc apparatus and method using the same

There is provided an apparatus for recording/reproducing data on/from a recording medium including: a pickup unit including an objective lens and a solid immersion lens(SIL) to allow a light to be incident onto a recording medium; a photoelectric element for receiving the light reflected from the recording medium to output a controlling signal; and a controller to control the pickup unit using the controlling signal outputted from the photoelectric element, wherein the controlling signal includes a tilting error signal by skew of the recording medium.

Apparatus and method for recording/reproducing data on/from a recording medium

Disclosed are an apparatus and a method for controlling a tracking servo in a near field optics. Gap error signals are detected in a divided state, and a push pull signal is compensated based on the detected gap error signals. A photo detector detecting the gap error signals is divided into two areas such that movement of an image formed on the photo detector can be detected. The push pull signal is compensated by subtracting a value proportional to a difference value between the two gap error signals detected in the photo detector. The difference value between the two gap error signals is proportional to a dc offset component included in the push pull signal. Accordingly, it is possible to simply remove a dc offset included in a push pull signal without largely modifying the near field optics, so that it is possible to exactly perform a tracking servo operation.

Apparatus and method for controlling tracking servo in near field optics

There is provided an optical reading/writing apparatus. The optical reading/writing apparatus includes an object lens barrel for mounting an object lens, an SIL (solid immersion lens) barrel for mounting an SIL, the SIL barrel being separated from the object lens barrel, and a movement control unit for selectively aligning the SIL with the object lens according to a type of an optical storage medium.

Optical reading/writing apparatus and method

An automatically editing method of programmed recordings is disclosed in which, when a plurality of different programs are reserved to be recorded, the same program can be continuously recorded together. The method according to the present invention, is carried out in such a manner that the total recording time and the total residue amount of the tape are calculated under the recording mode upon insertion of a tape, sectors are allocated by calculating the time per sector in accordance with the reserved programs, and the recording is carried out upon arriving at the reserved time and an index mark is put on the initial portion. After the recording, another index is put on the end portion of the recording and the system is put to a standby state until 5 minutes before the reserved time, and the next program sector is discriminated. By repeating the discrimination and movement to a discriminated sector, the reserved recordings are continued until the recorded number of programs become equal to the maximum recordable number, According to this method, users can watch recorded programs continuously by program regardless of the time.

Growing community of inventors

Seoul, South Korea

Yun Sup Shin