LandOfFree - US Patents - Listing for Telephonic communications

Telephonic communications – Terminal – Housing or housing component

Device for automatically lifting a cover of mobile phone by...

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

Device for automatically processing incoming electronic mail...

Telephonic communications – With usage measurement – Call charge metering or monitoring

Device for collecting, processing, working, and managing...

Telephonic communications – Multi-line or key substation system with selective switching... – With intercom system

Device for communicating a doorside intercom set with a remote t

Telephonic communications – Centralized switching system – Switching controlled in response to called station...

Device for connecting a data processing device to a...

Telephonic communications – Subscriber line or transmission line interface – Power supply

Device for connecting a subscriber line to a high frequency...

Telephonic communications – Telephone line or system combined with diverse electrical... – Remote control

Device for connecting a subscriber line to a selected internal l

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

Device for controlling the application of power to a computer

Telephonic communications – Including aid for handicapped user

Device for coupling hearing aid to telephone

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection

Device for detecting DTMF tones

Telephonic communications – Multi-line or key substation system with selective switching... – Line status indication or call alerting

Device for detecting operation state of telephone hook switch

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection

Device for detecting telephone line seizure

Telephonic communications – Supervisory or control line signaling – Signal reception at substation

Device for detecting tones on telephone lines

Telephonic communications – Subscriber line or transmission line interface – Protective circuit

Device for electrical and/or electronic telephone circuits, desi

Telephonic communications – Subscriber line or transmission line interface – Protective circuit

Device for establishing a galvanically separate connection...

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

Device for forming the hands-free function in a telephone set, a

Telephonic communications – Terminal accessory or auxiliary equipment – Telephone receiver support

Device for holding and contacting a radio telephone

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection

Device for identifying line reversal/ringing signal of a telepho

Telephonic communications – Supervisory or control line signaling – Substation originated

Device for indicating a call to an absent subscriber