Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 ?m to about 2 ?m, and a length of the channel of the third transistor is in a range of about 1 ?m to about 2.5 ?m.

Abstract: A robotic prosthetic foot according to the present disclosure includes a coupling module having an upper portion to which a limb part of a user is coupled, a prosthetic foot module configured to be coupled to a lower portion of the coupling module and support a load of the user to enable the user to walk, and a joint module provided at the coupling module to enable the prosthetic foot module to rotate, wherein the joint module includes an elastic unit configured to compress and expand due to the prosthetic foot module rotating as the user walks and generate an elastic restoring force to facilitate the rotation of the prosthetic foot module.

Abstract: A transceiver apparatus in a code division multiple access system is disclosed. The apparatus includes a low noise amplifier for amplifying a signal received via an antenna, a first filter for extracting components of a usable band from the amplified signal, and a voltage controlled amplifier for amplifying the filtered. A down mixer converts the amplified signal to an intermediate frequency, a second filter eliminates unnecessary waves generated during the conversion operation of the down mixer, and an automatic gain controlled amplifier amplifies the signal filtered by the second filter.

Abstract: A digital radio transmission and reception system capable of preventing shift of carrier by fading through receiving a modulated signal radio-transmitted, and then directly demodulating the signal.