In 2003, Longjing Microelectronics was established by introducing 11 members of the American Intel team, with the investment from Shanghai Alliance Investment Ltd. The company is dedicated to the development and industrialization of core processor IP and consumer terminal application SOC chips and systems based on domestic integrated circuit processes (e.g., HongLi Semiconductor, Huahong Semiconductor). The team successfully developed the first domestically produced 32-bit MIPS high-performance microprocessor, leading MPEG2 multimedia encoders and decoders, DVB-C/DVB-S channel decoding IP, audio encoders and decoders, and sound processing processors based on independent microarchitecture. This has resulted in core IP and SOC chip products centered around their independent microprocessors and audio-video codec technology, which were successfully applied to digital set-top boxes and digital media players.

• The first domestically produced MIPS high-performance microprocessor available in mass production.
• Leading domestic application of high-performance MPEG1/MPEG2 decoders for commercial use.
• Leading SOC chips for multimedia terminal audio and video decoding in China.

In 2005, the company collaborated with institutions such as the Institute of Computing, Chinese Academy of Sciences, Peking University, Shanghai Jiao Tong University, and Zhejiang University to jointly promote the development and industrial application of the domestic audio-video codec standard AVS. Longjing, as the core unit of the standardization group, took on the chip development and productization work for AVS standards. The company, in collaboration with Academician Gao, completed the AVS encoder algorithm and chip development, as well as the development and industrial application of AVS decoder microarchitecture and chips.

• Successfully developed the first domestically produced chip for terrestrial high-definition video digital set-top boxes supporting AVS/AVS+.
• Successfully developed the first domestically produced chip for multi-standard fusion digital high-definition set-top boxes supporting AVS and H.264.
• Successfully developed the first domestically produced main control SOC chip supporting China's high-definition DVD standard (HD-DVD).

In addition, the company developed multimedia terminal application SOC chips for digital home applications, such as digital photo frames and MP4 players, achieving large-scale applications. Simultaneously, the company expanded its intelligent display driver product line to meet the needs of China's strategic new industries. This led to the successful development of AMOLED panel driver chips (Driver IC) and display timing control chips (TCON), which were applied to products of Hehui Optoelectronics. To address the requirements of new portable storage applications, the company developed USB2.0-based Flash memory main control SOC chips, achieving mass production. The cumulative shipment of the main chip products reached 10 million units.

In 2012, with the advancement of China's major "Core High-Base" projects focusing on domestic CPUs and SoC chips, the Longjing team licensed relevant processor design technologies and IP, digital audio-video codec technologies and IP, and video display processing technologies and IP to Shanghai Zhaoxin. The chip team initially assisted Zhaoxin in developing the ZX1000 high-definition smart set-top box chip, which achieved mass production and application in broadcasting services such as Oriental Cable and Zhejiang Radio & Television. Subsequently, to consolidate chip R&D resources, the Longjing chip team merged into Zhaoxin to establish the Digital Media SoC product line, successively developing smart set-top box SoC chips including the ZX2000, ZX1800, and ZX2800.

• Led the development of the domestic independent TVOS operating system, middleware, and system solutions, serving as a core standard unit to spearhead technical proposals and system implementation for key versions like TVOS 1.0 and 2.0.
• Deeply participated in multiple national "Core High-Base" major projects, successfully promoting technological R&D and industrial implementation.
• Promoted the large-scale deployment and application of TVOS systems and digital media terminals in major broadcasting networks like Oriental Cable and Jiangsu Cable, achieving cumulative terminal shipments exceeding 5 million units.

After 2020, affected by international trade frictions and technology blockades, the core chip supply chain for domestic radio and television services faced severe challenges, creating an increasingly urgent need for domestic substitution of multimedia video terminal SoCs. Simultaneously, with the accelerated construction of China's low-orbit satellite internet system, high-performance, low-cost low-orbit satellite terminals have also become a critical component of the industry chain. Against this backdrop, the Longjing team embarked on a second venture and established Suzhou Longqing Shixin Integrated Circuit Co., Ltd. Leveraging existing technological and integrating industry resources, the company is committed to independently researching and developing a full-stack solution of "chip-system-AI model-AI application" for edge-side application scenarios and low-orbit satellite terminals based on domestic chips.

• Independently developed a full-stack solution of "chip-system-AI model-AI application" for edge-side application scenarios. The AIPC solution has already been showcased at the 2025 World Artificial Intelligence Conference;
• Independently developed low-orbit satellite terminals based on domestic chips. The company has become a core supplier for Yuanxin's "Qianfan Constellation" satellites and is also one of the industry's first core suppliers of commercial low-orbit satellite terminals.