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

Icon_funbox Bizarre Patents

Patent No. 6718554

Hands free towel carrying system

A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.

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 379/146 - Coin signalling or control


Subclass of Class 379 - Telephonic communications
Definition: Subject matter having some detail of transmitting a signal,
No. of patents: 73
Last issue date: 08/21/2007


1    
NumberTitleIssue Date
7259478Backup power supply for telephone set
A backup power supply for a telephone set that does not use batteries comprises a Electric Double Layer Capacitor (“EDLC”) having a charge capacity sufficient to power the control electronics of the set in the event of a power failure and for the brief period of...
08/21/2007
7088808Network access pay telephone and conversion kit
A kit for converting an existing pay telephone to additionally provide computer network access includes an upper housing unit that latches to a lower housing of the existing telephone, and a network adapter unit which includes a network computer and a control module...
08/08/2006
7076278Hybrid telephony device
A device configured to draw current from one of a PSTN source and a battery source depending on a mode of operation of the device is disclosed. In a preferred embodiment, the device includes a circuit that is configured to draw current from the PSTN source during a ...
07/11/2006
7073654Coin selector for bimetal coins
A coin selector assembly includes a coin passageway having at least a pair of thickness sensor unit operatively positioned along the coin passageway to provide respective measurements of the thickness of the coin. A comparing unit compares the respective thickness s...
07/11/2006
7050285Surge protector assembly with ground-connector status indicator circuitry
There is provided a surge protector assembly for use with a 66-M type terminal connector block having a plurality of parallel rows of opposed terminals which are laterally spaced apart from each other. The surge protector assembly includes a housing module formed of...
05/23/2006
7039103Asymmetric digital subscriber line methods suitable for long subscriber loops
Systems and methods are described for asymmetric digital subscriber loops. A method includes utilizing a circuit having a first end and a second end, the circuit having a first amplification interface connecting the first end to the second end in a first direction, ...
05/02/2006
6850607Intelligent vending system and method
An intelligent vending system such as a pay telephone provides local/remote diagnostics, fraud prevention, capability of facilitating local coin overtime operation, complete cash box accounting, and detailed reporting. Information regarding each transaction is recor...
02/01/2005
6744889Subscriber circuit for public telephone set
The invention provides a subscriber circuit for a public telephone set which eliminates the necessity to make a voice signal to be introduced to a channel filter a small signal. A voltage holding circuit is controlled with a polarity reversal indication signal which...
06/01/2004
6574320Coin release mechanism of payphone
A payphone coin release device includes a base plate fixed inside the payphone casing and having a pivotal pin extending therefrom to rotatably support thereon a driven link having two opposite arms of which one is rotatably pivoted at one end of an inter...
06/03/2003
6539083Inductive coin validation system and payphone using such system
A coin validation arrangement, usable for example in pay telephones, uses one or more inductive sensors having a small effective magnetic field so that the inductive sensor responds only to the material of a strip across the coin. Preferably a plurality o...
03/25/2003
6519338Tone burst generator and its application to telephony
A differential pair of a first and a second transistor is used in a tone burst generator circuit for generating tone bursts for periodic pulse metering. The first transistor carries all of the current through the differential pair when no tone burst signa...
02/11/2003
6370242Payphone electronic coin validator
An electronic coin validator for connection to a payphone chassis is described. The validator includes a coin passageway having at least one coin sensor, power circuitry for connection to payphone chassis power lines and connected to the coin sensor, a va...
04/09/2002
6335970Automatic coin collection device for a payphone provided with no coin collection signal
An automatic coin collection device for a payphone provided with no coin collection signal is disclosed, which has a solenoid to be activated to collect coins so as to start to count time and begin telephone communication. A call tone detector is connecte...
01/01/2002
6320945Line-powered pay telephone
A pay telephone unit is disclosed that derives all operating power from the tip and ring conductors of the telephone line without the need for a battery. All data is stored in nonvolatile memory requiring no power for data retention, even when disconnecte...
11/20/2001
6304643Pay phone deposit method for limiting overpayment by a customer
A method for limiting overpayment at a coin-operated telephone is disclosed. According to the method, a customer may initiate a call by first depositing a plurality of coins and then dialing the desired number. Once the number is dialed, the phone obtains...
10/16/2001
6301344Intelligent public telephone system and method
An intelligent pay telephone provides local/remote diagnostics, fraudulent call prevention, capability of facilitating local coin overtime operation, complete cash box accounting, and call detail reporting. Information regarding each call placed from the ...
10/09/2001
6163603Coin escrow apparatus with relay switch contact simulator
A coin escrow apparatus for use with a pay telephone includes a housing defining a coin hopper, a coin acceptance chute, and a coin return chute. The apparatus also includes a door mounted within the housing for selective movement between an escrow positi...
12/19/2000
6072863Apparatus for conditioning automatic coin validation signals, and method-of-use therefor
An external plug-in module is inserted, or field retrofitted, between a validator and a phone chassis and incorporates circuitry to condition the coin signals generated by the validator. This signal conditioning eliminates the possibility of the chassis b...
06/06/2000
6052452Pay phone
A pay phone having an operation module acted with a switch hook and a push button, the operation module including a base frame, a movable frame pivoted to the base frame and defining with the base frame a coin passage for guiding an inserted coin from a c...
04/18/2000
6052453Coin operated telephone auditor
A low-power, integrated coin acceptor for a payphone containing audit circuitry is described. The integrated coin acceptor connects to the telephone tip, ring and ground lines and connects to a dumb or smart payphone chassis to provide both coin validatio...
04/18/2000
6038298Lower casing structure of payphone
A lower casing structure of a payphone is disclosed, including an outer casing member fit over the lower portion of the payphone and having threaded rods fixed thereon, a reinforcement plate having holes corresponding to and fit over the threaded rods, a ...
03/14/2000
6014433Dynamic escrow type detection system
An escrow unit is an electromechanical device used to collect or return coins deposited in a pay telephone. An escrow management system 10 for use in controlling a pay telephone escrow unit 26 is provided which consists of an energy storage unit 20 which ...
01/11/2000
5978460Coin telephone data port protection
A package advantageously to be mounted within the housing of a coin telephone permits the telephone set to exhibit a jack to which a personal computer may be connected without danger of the jack being used for fraudulent purposes by normally maintaining t...
11/02/1999
5960060Line tester for coin-operated telephones
A line tester unit for coin-operated telephones that permits the interface between the coin-operated telephones and the telephone network to be efficiently verified at most access points throughout the telephone network....
09/28/1999
5946392Telephone handset interface device
An interface device for mating transducer-based telephone handsets to a telephone, and particularly transducer-based telephone handsets having different electrical input/output requirements comprises: a current source device for providing current flow thr...
08/31/1999
5924076Coin operated device collection scheduler
A method for determining an optimal coin operated coin collection date accounts for weather and seasonal effects on the expected revenue stream. One method according to the present invention may include: determining the expected base revenue for the coin ...
07/13/1999
5912955Method and apparatus for management of remotely-deployed stations
Methods and systems are disclosed for the management of a remotely-deployed unit such as, for example, a telephone station. A local station revenue signal generated at the remote station corresponds to an amount of revenue generated at the remote unit. Th...
06/15/1999
5907606Telephone-line powered coin telephone chassis
A telephone-line powered coin telephone chassis which operates on as little as 23 milliamperes of off-hook loop current and which shuts down on-hook. Capacitors power a microprocessor for a short time during on-hook coin control immediately after a phone ...
05/25/1999
5898771Method and apparatus for universal telephone operator service
A local exchange carrier can provide operator service for a telephone call, whether intra-LATA or not, and in some cases to perform the service so that the call can be passed with the service already provided. Operator services for calls that require prio...
04/27/1999
5896446Coin operated telephone auditor
A low-power, integrated coin acceptor for a payphone containing audit circuitry is described. The integrated coin acceptor connects to the telephone tip, ring and ground lines and connects to a dumb or smart payphone chassis to provide both coin validatio...
04/20/1999
5809124Coin charging system for mobile telephony
Coin charging system for mobile telephony in order to facilitate the making of telephone calls by means of a mobile telephone with a coin charging system, mainly in public transport means such as buses, airplanes, trains, ships etc., the system being prov...
09/15/1998
5483583Pay phone
A coin transmission control mechanism for a pay phone, including a plurality of projecting rods and slots below the projecting rods, a control plate connected to the projecting rods and having an actuating strip extended out of the telephone body of the p...
01/09/1996
5373552Tone Burst Generator
A tone burst generator where a continuous tone voltage is applied across two series-connected semiconductor switches each having an ON state and an OFF state. A first control circuit controls the state of the first switch and the variable impedance in an ...
12/13/1994
5359643Telecommunications device with simplified calling procedures
A telephone call is conveniently placed between a telecommunications device and a central office. A first plurality of signals representing a telephone dialing digit not including "0", followed by a multiple-digit phone number, is received. At least one s...
10/25/1994
5341417Integrated PCM-CODEC circuit with telemetering noise elimination
An integrated PCM-CODEC circuit including a plurality of PCM subscriber lines consisting of a SLIC for interfacing a telephone line with a switching system, an impedance conformer and a PCM-CODEC, a common bus for transferring a telephone signal into or f...
08/23/1994
5278895Voice messaging method and apparatus for pay phone telephone systems
A voice message system for a pay phone telephone network interposes an Intercept Processing Subsystem (IPS) in the line connections between the pay telephones and the central office. A Voice Processing Subsystem (VPS) is connected to the central office sw...
01/11/1994
5168518Coin tone validator for telephone paystations
A coin tone validator (CTV) is located in a local central office and is connected between a pay telephone and a switching system. The CTV monitors DC loop current changes using opto-couplers inserted into a local loop in addition to measuring standard 170...
12/01/1992
5150403Coin fraud prevention system for coin telephones
A coin fraud prevention system which includes a coin telephone having a voice transmitter, comprising a coin tone sensing arrangement for sensing coin tones, coupled to the voice transmitter of the telephone; and a coin telephone disabling arrangement in ...
09/22/1992
5134646Voice messaging method and apparatus for pay phone telephone systems
A voice message system for a pay phone telephone network interposes an Intercept Processing Subsystem (IPS) in the line connections between the pay telephones and the central office. A Voice Processing Subsystem (VPS) is connected to the central office sw...
07/28/1992
5133005Line powered pay telephone with power management
A line powered telephoe is disclosed in which the telephone is not powered from a separate external source. The improved pay telephone is powered solely by loop current available on the telephone line from the central office. A rechargeable battery is pro...
07/21/1992
1    
 
Sign InRegister
Username  
Password   
forgot password?