U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"During my service in the United States Congress, I took the initiative in creating the Internet."

Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 379/256 - Having automatic or through ringing


Subclass of Class 379 - Telephonic communications
Definition: Subject matter which generates a call alerting signal in
No. of patents: 8
Last issue date: 08/28/2007


NumberTitleIssue Date
7263489Detection of characteristics of human-machine interactions for dialog customization and analysis
A system which uses automatic speech recognition to provide dialogs with human speakers automatically detects one or more characteristics, which may be characteristics of a speaker, his speech, his environment, or the speech channel used to communicate with the spea...
08/28/2007
6941304Method and apparatus for performing enterprise email management
The enterprise email system processes incoming email using a set of configurable rules that examine each message for a specific attribute state condition and invoke a configurable action when the attribute satisfies the condition. A number of actions may be invoked ...
09/06/2005
6249807Method and apparatus for performing enterprise email management
An enterprise email management system is disclosed. The enterprise mail system is designed to handle large volumes of email quickly and efficiently, responding through enterprise email system users or automated means. The enterprise email system processes...
06/19/2001
5966436Redialing method
A redialing method in a communication apparatus provides that the digits of a telephone number are consecutively input by a user, and the actual time intervals between the consecutive inputs are measured and stored in memory along with the digits of the t...
10/12/1999
5530931Method and apparatus for providing a look ahead feature for enhanced call forwarding in a telecommunications system
A method and apparatus for providing an enhanced Call Forwarding Don't Answer feature is disclosed. When an originating address calls a base address assigned the Call forwarding Don't Answer feature and the call is forwarded to a remote address, a Look Ah...
06/25/1996
5521975Telephone terminal device with means for detecting abandonment of call
A telephone terminal device, which is activated by a predetermined number of ringing signals even if a telephone call occurred immediately after a previous caller had abandoned a call before engagement of the telephone line. When the telephone terminal de...
05/28/1996
5426695Ringing signal control circuit capable of suppressing surge voltage
In a ringing signal control circuit for controlling supply of a ringing signal from a ringing signal generator to a subscriber's line in response to a call signal destined thereto, a switching element is repeatedly switched to connect the ringing signal g...
06/20/1995
5027389Self-compensated dual tone multiple frequency generator
A Dual-Tone Multi-Frequency (DTMF) Generator produces a row and column tone frequency for application to the input of two source follower buffer stages. The outputs of the buffers stages are combined in summation operational amplifier to generate the DTMF...
06/25/1991
 
Sign InRegister
Username  
Password   
forgot password?