Abstract:
A delay circuit is capable of securing a constant delay time in spite of a process variation as well as voltage and temperature variations. Using the delay circuit that secures a sensing margin time in spite of process, voltage and temperature variations, a semiconductor memory device is capable of amplifying desired data within a preset RAS to CAS delay (tRCD). The delay circuit includes a delay unit including a current source controlled by a bias voltage, a delay time of the delay unit being changed depending on current amount of the current source, and a bias voltage generating unit configured to divide a power supply voltage using a first resistor to generate the bias voltage, wherein the delay unit includes a second resistor inserted into a current path of the current source.
Abstract:
A layout method for a mask can include forming a cell including a first main pattern. A second main pattern can be formed in a main chip layout, and the cell can be inserted into the main chip layout. A dummy pattern inhibiting region can be created on the basis of the first main pattern and the second main pattern. Then, plural dummy patterns having a single common shape can be formed over the entire main chip layout into which the cell is inserted. Dummy patterns that overlap with the dummy pattern inhibiting region can be removed.
Abstract:
A light guide unit for a point light source includes a light incident portion, a first reflecting portion and a second reflecting portion. The light emitted from the point light source enters to the light incident portion. The light incident portion includes an optical pattern diffusing an incident light corresponding to the point light source. The first reflecting portion reflects a first light of the incident light. The second reflecting portion roundly connects the first reflecting portion to the light incident portion and reflects a second light of the incident light.
Abstract:
The present invention relates to an artificial transcription factor which can artificially regulate gene expression of an E. coli, wherein the transcription factor comprising zinc finger proteins and transcription factors of prokaryote, and to be engineered E. coli using the same. Specifically, the artificial transcription factors in E. coli as effector domains are prepared and said artificial transcription library is introduced to E. coli to effectively and artificially regulate gene expression regardless of an activity of endogenous transcription factors in the E. coli and to induce E. coli having various desired phenotypes. Thus, only E. coli having the desired phenotypes useful for industries can be selected and used.
Abstract:
The present invention related to a method for crystallizing a CMY-10 being a β-lactamase with extended-substrate spectrum, a crystal of CMY-10, and a crystal structure of CMY-10. With utilization of three-dimensional structure of CMY-10 protein provided by the present invention, it is possible to develop novel antibiotics or inhibitors that can prevent an emergence of resistance bacteria appeared by plasmidic class C β-lactamases having extended-substrate specificity.
Abstract:
A text entry method and a display apparatus applying the same are provided. In the text entry method, one emoticon is selected from an emoticon set, and a text string corresponding to the selected emoticon is then entered. Therefore, it is possible for a user to enter text more conveniently.
Abstract:
A broadcast receiver and a method for processing a digital caption using the same. A broadcast receiver receives a broadcast signal containing digital caption information, searches for an explanation of terminology to be explained if terminology in the digital caption information is included in a list of terminology to be explained, and displays the explanation found for the terminology to be explained on a screen.
Abstract:
An address latch circuit of a semiconductor memory apparatus includes a control signal generating section configured to generate a control signal in response to an external command signal and a RAS idle signal, a clock control section configured to output a clock signal as a control clock signal when the control signal is enabled and to fix the control clock signal to a predetermined level when the control signal is disabled, and an address latch section configured to latch an address signal in response to the control clock signal.
Abstract:
An on-screen-display (OSD) item displaying method and a display apparatus applying the OSD item displaying method. In the method an OSD menu containing a plurality of OSD items is displayed on an OSD menu display area, and when an event occurs, an event OSD item associated with the event may be displayed using the OSD menu display area and a content display area. Therefore, the display apparatus can selectively display the OSD menu on the content display area, which enables a user to more easily recognize important information.