Nationz Technologies Incorporated

Yunbo Yu

Shan Zhu

Yan Xiong Lu

Meixiang Li

Li Ouyang

Xikui Li

Zhiqin Hao

Jianhua Liang

Aimin Shen

Weixi Luo

A radio frequency communication system, method, and device operate in the VHF, UHF, or SHF range, where a controller controls the radio-frequency communication range provided by the VHF, UHF, or SHF radiation.

System, method, and device for radio frequency communication

A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.

RF SIM card, card reader, and communication method

A radio frequency (RF) IC card device with very high frequency comprises an IC device (), a radio frequency interface device (), an RF antenna (), an IC card interface () and an RF interface (). Particularly, said RF interface device () and the RF interface () operate in a frequency band of UHF (ultra high frequency) or SHF (super high frequency); said RF antenna () is directly integrated on an IC card (); the RF IC card device with very high frequency exchanges data with other RF devices via the RF interface ().

Radio frequency IC card device with very high frequency

Growing community of inventors

Shenzhen, China

Yunbo Yu