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| Number | Title | Issue Date |
| 5257307 | Radio pager system which transmits secret coded messages from a caller to a pager terminal apparatus A radio pager system and pager terminal apparatus used in the system are disclosed. A pager signal to be transmitted includes destination information and message specifying information for specifying a message to be transmitted. The pager terminal apparat... | 10/26/1993 |
| 5202912 | Method and apparatus for providing telepoint to telepoint calling between pager equipped handsets Communication between first (38, 40 or 42) and second (38, 40 or 42) portable radiotelephone transceivers is provided in a radiotelephone communication system by generating a paging message (500-512) in response to the first transceiver (38, 40 or 42) reg... | 04/13/1993 |
| 5159624 | Communication system for transmitting to a portable receiver data indicative of received image or voice signals A communication system is disclosed having a portable radio called receiver and a communication apparatus for calling this receiver. The portable radio called receiver includes a display and a tone generating circuit. The communication apparatus includes ... | 10/27/1992 |
| 5142279 | Acknowledge back paging system having the capability of matching variable length data messages to pager addresses A paging terminal for transmitting address and variable length message signals to a plurality of remotely located acknowledge back and non-acknowledge back pagers, each having a unique address, includes an input for accepting variable length messages to b... | 08/25/1992 |
| 4961216 | Telephone answering and paging system A telephone answering system for receiving calls from a caller and forwarding caller information to an owner's telephone. An automatic message center which provides instructions to a caller via the owner's outgoing message, receives and stores the caller'... | 10/02/1990 |
| 4942598 | Telephone answering machine in paging systems with automatic number identification based message operations An automatic telephone answering device employing an Automatic Number Identification (ANI) decoder to selectively perform operations on a telephone call is described. The device may perform such operations as to selectively not respond, end, record or for... | 07/17/1990 |
| 4926460 | Universal PSTN page entry protocol A universal PSTN page entry protocol method and arrangement is disclosed whereby any type of incoming call may be accommodated at a single telephone input, be it a call from a standard telephone set or from a computer/VDT or PET terminal device. This perm... | 05/15/1990 |
| 4885577 | Paging system for providing a data message and a voice message to a unique address of a paging receiver A paging system is provided for transferring data and voice messages to a unique address of a paging receiver. The system includes a paging controller, an encoder, a transmitter, and a paging receiver. The paging controller receives voice and data informa... | 12/05/1989 |
| 4876538 | Paging system sublocal switch A paging network is disclosed which utilizes a plurality of distributed switches to transmit pages on a non-real time basis to achieve efficient and low cost transmission. Each of the switches processes packets of pages received from the network. Each of ... | 10/24/1989 |
| 4868558 | Paging system lata switch A paging network is disclosed which utilizes a plurality of distributed switches to transmit pages on a non-real time basis to achieve efficient and low cost transmission. Each of the switches processes packets of pages received from the network. Each of ... | 09/19/1989 |
| 4866431 | Paging system hub switch A paging network is disclosed which utilizes a plurality of distributed switches to transmit pages on a non-real time basis to achieve efficient and low cost transmission. Each of the switches processes packets of pages received from the network. Each of ... | 09/12/1989 |
| 4788543 | Apparatus and method for broadcasting priority rated messages on a radio communications channel of a multiple transceiver system Apparatus in a transceiver for broadcasting priority rated messages on a channel shared by a multiplicity of similar transceivers, converts an analog audio frequency message to compressed digitalized format which is stored, encrypted, and encoded with a p... | 11/29/1988 |
| 4680785 | Personal-signaling communication system A personal-call communication system wherein a personal identification number is assigned to each telephone user, and an arbitrary person is called by wireless by dialing a corresponding personal calling number. The called person sets an ID-card-type port... | 07/14/1987 |
| 4207598 | Automatic mail sending system For sending mail automatically, letters put in a sending station uncovered are scanned with a television camera tube, and the information is transmitted to storages in a telephone exchange. In the exchange, a numerical destination address written at a spe... | 06/10/1980 |
| 3995121 | Telephone interconnected paging system with dial click to pulse converter A telephone paging system includes a central interconnect station responsive to phoned information for automatically transmitting the caller's verbal message to a designated portable paging receiver. The central station instructs the caller by means of a ... | 11/30/1976 |
| 3984775 | Method of transmitting information by radio The present invention describes a method and apparatus for selectively transmitting information by radio, without causing congestion of transmission frequency bands, even if the number of users who may be called is relatively great. This object is achieve... | 10/05/1976 |
