VR-COV-VR-ECHO-CANCEL
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Bi-directional SerDes for Scale-Up - Line hint:
663
Context Before
B0+A0=BA0
An inverted copy of the local TX must therefore be generated at the local RX for proper echo cancellation:
Evidence
B0+A0=BA0+(−A0)=B0
Context After
The diagram below illustrates this dynamic:

② Atomic Claim
The source writes the cancellation expression as B0+A0=BA0+(−A0)=B0; this records the source notation without endorsing the entire equality chain.
- Epistemic Mode:
ATTRIBUTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"attribute": "SOURCE_CANCELLATION_NOTATION",
"context_nodes": [],
"entity": {
"id": "04_knowledge_base/Echo cancellation",
"label": "Echo cancellation"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "B0+A0=BA0+(−A0)=B0"
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | Echo cancellation | 04_knowledge_base/Echo cancellation |
⑤ V2 Draft(需要修正時直接編輯)
Inline repair
只編輯以下三個 Draft 區塊。完成後將
review_action設為REQUEST_REPAIR,再手動執行 Repair Preview。
執行腳本前,Draft 不會寫入 Claim Store 或 Graph。
V2 Atomic Claim Draft
The source writes the cancellation expression as B0+A0=BA0+(−A0)=B0; this records the source notation without endorsing the entire equality chain.
V2 Semantic Frame Draft
{
"attribute": "SOURCE_CANCELLATION_NOTATION",
"context_nodes": [],
"entity": {
"id": "04_knowledge_base/Echo cancellation",
"label": "Echo cancellation"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "B0+A0=BA0+(−A0)=B0"
}
}V2 Revision Metadata Draft
{
"epistemic_mode": "ATTRIBUTED",
"mapping_status": "COMPLETE"
}⑥ Human Review
請在 Properties 逐項確認:
- 原文 → Atomic Claim 是否忠實
- Atomic Claim → Semantic Frame 是否忠實
- Canonical Entity mapping 是否正確
- Epistemic mode 是否保留原文語氣
- 最後選擇
review_action
Review state
Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。