38 results about "Human body channel" patented technology

The invention relates to an entity right-certification and cipher key management for a Body Sensor Network (BSN). An improvement upon techniques of biosensor and mobile computing and so on drives the instant development of a novel generation of medical treatment monitoring terminal-wearing / implantable biomedical transducer. In the near future, the BSN or a Body Area Network (BAN) constructed by self-assembling a plurality of biomedical transducers can be a basic network for obtaining, treating and transmitting biomedical information, thereby realizing a remote monitoring to human body physiological status in real time. The invention aims at the safety communication of the BSN, multiply uses the human body channels connected to the biomedical transducer, and realizes the high effective entity right-certification and cipher key management. The invention can provide multiple assurance for medical data security transmission of the BSN on the premise of not significantly increasing system load.

The invention relates to a current coupling type human body communication transceiver aided design system and a method. The system comprises a principal computer module, a data acquisition card, a power supply, an isolation circuit module, a human body channel, and four electrodes pasted in the human body channel. Of the four electrodes, two electrodes serve as a human body signal sending end, and the other two electrodes serve as a human body signal receiving end. The data acquisition card is connected with a principal computer motherboard through an interface, and is in communication connection with the isolation circuit module. The two electrodes serving as the human body signal sending end are connected with the isolation circuit module. The two electrodes serving as the human body signal receiving are connected with the data acquisition card. The system and the method can provide convenience for developers to do prototype creation and simulation work rapidly in the process of product development.

The invention relates to a field-circuit coupled capacitive human body channel modeling method for a wearable device. In a capacitive coupling signal transmission mode, an electric field model of intra-body communication is established; and based on this, a communication part of the wearable device, parasitic capacitive impedance between electrodes and coupling capacitive impedance of external environment in actual measurement are equivalent into an external circuit model, and the external circuit model is added into the electric field model to obtain a field and circuit combination model. According to the method, the deficiencies of neglect of parasitic capacitive impedance between electrodes, coupling capacitive impedance of external environment and a circuit of a wearable device, and the like in an existing channel modeling method are improved, the completeness of modeling is perfected, and the human body channel estimation is performed with the field-circuit coupled capacitive human body channel modeling method for the wearable device, so that a true condition of actual measurement environment can be comprehensively reflected, and the degree of matching with true human body channel characteristics is higher.

There is provided a human body communication method and system using a frequency-selective baseband in order to transmit and receive data between communication devices that are coupled to a human body by using the human body as a communication channel. The human body communication method and system may be useful to maximize an efficiency of the frequency-selective spreading technology to enhance a processing gain of the Walsh code technology, and thus to reduce the interference between human bodies of users by adaptively selecting a frequency band of Walsh codes that are used for data communications according to the human body channel characteristics and the noise environments that are varied according to the ambient environments, and also construct a low-power and stable human body communication when there is a strong interference induced from other electronic equipments.

The invention relates to a channel and collateral mountain, which comprises a mountain body (100) and colored ribbons (101), and is characterized in that the upper part of the mountain body (100) is a head region, the middle part of the mountain body (100) is a body region, two sides of the upper part of the mountain body (100) are arm regions, two sides of the lower part of the mountain body (100) are leg regions, and the colored ribbons (101) are arranged in the head region, the body region, the arm regions and the leg regions in a mode of being corresponding to distribution of human body channels and collaterals. According to the channel and collateral mountain, the human body channels and collaterals are represented by the color ribbons arranged on the mountain body, and further different channels and collaterals can be represented by using different colors of colored ribbons, so that tourists are enabled to learn distribution of the human body channels and collaterals in touring process, and teaching is carried out through lively activities. The colored ribbons used for representing channels and collaterals can also be marked with names of the channels and the collaterals, positions corresponding to the human body, acupuncture points on the channels and collaterals, and effects played by the channels and the collaterals.