Uniport interface for a bar code reading instrument

作者： Jr. Andrew Longacre

DOI:

关键词: Terminal (electronics) 、 Interface (computing) 、 Electrical engineering 、 Battery (vacuum tube) 、 Code reading 、 Engineering 、 Bar (music)

摘要: An optical bar code reading instrument has a uniport interface circuit which accepts through common terminal both charging current for the reader's internal rechargeable battery and incoming digital electric information signals. The also allows electrical signals produced by to pass same terminal.