Philips Lost the Patent Infringement Lawsuit

Seoul semiconductor recently announced that it won a patent infringement lawsuit against the factory depot advantages, Inc. ("factory depot") selling Philips electronic products and feit lighting products and successfully obtained a permanent sales ban.

The U.S. District Court for the Central District of California issued a permanent ban on the sale of Philips label display products produced by a subsidiary of TPV technology, the world's largest computer display manufacturer. It is reported that the PHILPS brand products are used in China Taiwan LED manufacturer Lextar Electronics LED package. Earlier, Seoul semiconductor won a patent infringement lawsuit against Fry's electronics, which was sentenced to permanently ban the sale of Philips brand led TVs.

This permanent sales ban also prohibits the sale of some filament LED bulbs from feit electronics. Seoul semiconductor is a supplier of filament LED components licensed by Santa Barbara filament led patent. In recent years, Seoul semiconductor has been actively promoting the crackdown on products suspected of patent infringement. In the past three years, Seoul semiconductor has successfully obtained six permanent sales bans, including two recall (recall of products already sold).

Meanwhile, Nixon, representing Santa Barbara? Nixon Peabody announced that it would expand patent enforcement activities related to filament LED lighting products and take new actions against General Electric, savant systems, feit electric, home depot, IKEA and satco products through the International Trade Commission (ITC).

Seoul weiaoshi is a global enterprise developing full wavelength range lighting products, including 1400nm VCSEL infrared (IR) laser diode and 200nm UV LED. Seoul semiconductor and its subsidiary, Seoul weiaoshi, invest more than US $100 million in R & D every year and have more than 14000 patents. It has been selected as the world's top patent enterprise by IEEE.

Philips Lost the Patent Infringement Lawsuit 1

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Multi Channel Laser Anti-theft Alarm Circuit
The figure shows the circuit of multi-channel laser anti-theft alarm. VT1, vt2, RL1, RP1, R1, K and vd6 constitute an optical control switch. During the day, the photoresistor RL1 is in a low resistance state under light, VT1 is saturated on, vt2 is off, relay K is not energized, normally open contact J is off, and the alarm circuit does not work; At night, RL1 changes to high resistance state, VT1 is cut off, vt2 is saturated and turned on, K is powered on to make j pull in, the circuit supplies power to the whole machine, the red LED is on, the regulated voltage is 6V, and supplies power to the subsequent circuit after voltage reduction by vd7, vd8 and vd9. Laser rods JB1, RL2, VT3, RP2, R3 and R4 form a laser transmitting and receiving network. When the alarm is in the waiting state, the laser rod emits red laser and irradiates it on the photoresist RL2. RL2 is in a low resistance state, and the base potential of VT3 is very low, which provides trigger current for thyristor vs, vs is turned on, IC2 is powered on, and the horn gives an alarm sound. The alarm can be equipped with up to 10 laser transmitting and receiving networks at the same time. The circuit structure is exactly the same, and C3 is an anti-interference capacitor. An is a reset switch. When the power grid is cut off or the gangster cuts off the power supply, the battery immediately supplies power to the whole machine, ensuring the reliability of the alarm device.Component selection: IC1 is voltage stabilizing integrated circuit 7806, and aluminum heat sink shall be added during use. IC2 is KD-9561 four sound chip, and the circuit is connected to the second sound selection terminal sel2 (fire truck alarm sound). The laser source is a red laser rod with voltage of 4.5V and power
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