Samsung Electronics Co., Ltd.

The Industry & Academic Cooperation in Chungnam National University (iac)

Industry-University Cooperation Foundation Hanyang University

The Industry & Academic Cooperation in Chungnam National University

Hyoung Ho Ko

JongPal Kim

Jong Pal Kim

Tak Hyung Lee

TakHyung Lee

Byong Deok Choi

A signal processing apparatus includes an input voltage selector configured to select an input voltage from a plurality of input voltages; an input element connected to the input voltage selector; and an input current controller configured to control an inflow of an input current in conjunction with an operation of the input voltage selector.

Signal processing method and apparatus

A semiconductor chip may comprise: a processor for processing data; a shield which includes a metal line and is arranged over an upper portion of the processor; a detection unit for comparing a reference signal with an output signal, which is outputted when the reference signal passes through the shield, so as to detect whether there has been a wiring change within the shield or not; and a controller for configuring the routing topology of the metal line to be in a first state, and changing the routing topology from the first state to a second state.

Secure semiconductor chip and operating method thereof

A method and an apparatus for measuring a bioimpedance are disclosed. The apparatus includes a first electrical signal generator configured to generate a first electrical signal to measure a bioimpedance of an object. The apparatus also includes a compensation signal generator configured to generate a compensation signal to compensate a biosignal measured based on the first electrical signal, and an amplifier configured to amplify the compensated biosignal.

Method and apparatus for measuring bioimpedance

A semiconductor chip comprises at least one data bus to transmit data processed by the semiconductor chip, an electric potential generator block packaged together with the at least one data bus to be blocked from external light by a package, the electric potential generator block to detect an event in which the package is unable to block the external light, and a switch configured to block a transmission of at least some data in the at least one data bus if the event is detected. A semiconductor chip comprises an energy harvesting element inside a package. The energy harvesting element may comprise an on-chip photodiode. A depackaging attack causes the generation of a voltage of a photodiode, and thus a change in physical state of the packaging can be detected.

A bio impedance measurement apparatus includes a current applicator configured to provide, to terminals contacting a body, a current based on a first control signal, and a modulator configured to modulate a voltage generated as the current flows through the body, based on a second control signal. The apparatus further includes an amplifier configured to amplify the modulated voltage, and a demodulator configured to demodulate the amplified voltage based on a third control signal.

Apparatus and method of measuring bio impedance

An apparatus of processing a signal or a biosignal, and a method of processing a signal or a biosignal are provided. The method of processing signal involves receiving a first reference signal having a frequency component of a measurement signal to be applied to a subject, receiving a second reference signal having a frequency component within a frequency bandwidth of an amplifier, and converting a first signal measured from the subject to a second signal within the frequency bandwidth of the amplifier, based on the first reference signal and the second reference signal.

Apparatus and method for processing signal

A biosignal apparatus is described including an amplifier and a sampler. The amplifier is configured to alternate between an operating state and a low power state based on a periodically changing control signal. The sampler is configured to sample a signal output from the amplifier in response to the amplifier being in the operating state and maintain the sampled signal in response to the amplifier being in the low power state.

Biosignal amplifying circuit

A signal processing apparatus includes a first electrical signal generator configured to generate a first electrical signal, a second electrical signal generator configured to generate a second electrical signal based on a voltage signal output from a variable impedance unit, and a multiplexer configured to selectively supply the first electrical signal and the second electrical signal to the variable impedance unit.

Growing community of inventors

Daejeon, South Korea

Hyoung Ho Ko