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Intangible Assets, Net | 12 Months Ended
--- | ---
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets, Net |
7. | INTANGIBLE ASSETS, NET
Intangible assets, as of December 31, 2022 and 2023 are as follows: ​
​ | ​ | ​ | ​ | ​
​ |  | As of December 31,
​ | ​ | 2022 | ​ | 2023
​ |  | RMB |  | RMB
Software |  | 30,095 |  | 38,143
Technology |  | 8,390 |  | 65,235
Total cost |  | 38,485 |  | 103,378
Less: Accumulated amortization |  | (17,885) |  | (24,648)
Intangible assets, net |  | 20,600 |  | 78,730
​ Amortization expenses related to intangible assets were RMB6,326, RMB7,914 and RMB7,704 for the years ended December 31, 2021, 2022 and 2023, respectively. On December 15, 2023, the Group acquired a Swiss company, which designed image sensors for spatial awareness for industrial and automotive applications. In connection with this acquisition, the Group acquired patent rights to certain technologies valued of RMB59,351 with an amortization period of 8 years. ​ 7.INTANGIBLE ASSETS, NET (continued) The estimated amortization expenses for each of the five succeeding fiscal years and thereafter are as follows: ​
​ | ​ | ​
​ |  | Years ended
​ | ​ | December 31,
​ | ​ | RMB
2024 |  | 11,678
2025 |  | 10,416
2026 |  | 9,866
2027 | ​ | 9,866
2028 and years after | ​ | 36,904
Total |  | 78,730
​

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350-30/tableOfContent + Details
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