Patent · US Active

Method and apparatus for providing accessibility features for a telephone

US7567664B2 · kind B2 · utility

2Cited by
5References
29Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 5, 2005
Grant dateJul 28, 2009
Priority date—
Expiry dateJan 28, 2028

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M2250/12
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Method and apparatus for providing accessibility features for a telephone is described. In one example, a telephone system includes a memory, a counter, and a microcontroller. The memory is configured to store user preference data, including duration of a timeout period. The microcontroller is configured to initialize the counter in response to an off-hook condition and, if a value of the counter equals the duration of the timeout period before detection of an on-hook condition, transition to the on-hook condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.