这家上市公司在互动平台“自问自答”，被证监会立案调查

Group 1 - The core issue involves Shenzhen Yingjixin Technology Co., Ltd. (referred to as "Yingjixin") being investigated by the China Securities Regulatory Commission (CSRC) for misleading information disclosure related to a self-questioning and answering session on the Shanghai Stock Exchange E-Interaction platform [1] - Yingjixin announced on February 13, 2026, that it received a notice of investigation from the CSRC due to suspected violations of information disclosure laws, and the company will cooperate with the investigation while continuing normal business operations [2] - The company, in collaboration with its affiliate Jingxin Weier (Changzhou) Electronic Technology Co., Ltd., has launched the IPA1299, a low-noise 8-channel 24-bit synchronous sampling analog-to-digital converter (ADC) chip, primarily used in non-invasive brain-computer interface applications [3] Group 2 - The IPA1299 chip is designed for high-precision signal acquisition, applicable in electroencephalography (EEG), electrocardiography (ECG), and electromyography (EMG), with significant technological differences from current invasive brain-computer interfaces [3] - As of the announcement date, the IPA1299 is still in the market cultivation phase for non-invasive brain-computer interfaces and has not yet achieved significant sales, indicating uncertainty in future sales performance [3]