Bizarre Patents
A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.
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.
| Number | Title | Issue Date |
| 4747112 | Decoding method for T1 line format for CCITT 32K bit per second ADPCM clear channel transmission and 64 KBPS clear channel transmission The present method is a decoding scheme for suppressing excessive amount of zeroes transmitted via a T1 line facility. Clear channel transmission capability is provided by this scheme for 32 kb/s or 64 kb/s transmission channels. This scheme provides the ... | 05/24/1988 |
| 4744045 | Divider circuit for encoded PCM samples A circuit divides pulse code modulation (PCM) samples in D2 format. An exponent subtractor provides the difference of the exponents of the two numbers. A mantissa multiplier circuit determines the quotient by multiplying the mantissa of the PCM sample by ... | 05/10/1988 |
| 4740914 | Address generator An address generator which provides addresses for machine storage and software retrieval of computer status information. A counter is used to generate address signals in a descending order until it is disabled by a computer during alarm conditions. Under ... | 04/26/1988 |
| 4739246 | Current reference for feedback current source A Current Reference for providing a feedback signal to a current driver in a current-series, feedback-controlled current source circuit that includes at least one, but more likely more than one, controlled current source. The Current Reference comprises a... | 04/19/1988 |
| 4731830 | Nonsaturating interface supply An integrated circuit includes an interface circuit for coupling with a relative high-level VOICE circuit and a relatively low-level DIALER circuit to a subscriber line. A first shunt transistor is coupled across the telephone line and has its collector c... | 03/15/1988 |
| 4716538 | Multiply/divide circuit for encoder PCM samples A circuit multiplies or divides pulse code modulation (PCM) samples in D2 format. An exponent adder/subtractor provides the sum/difference of the exponents of the two numbers. A mantissa multiplier/divider circuit determines the product/quotient of the tw... | 12/29/1987 |
| 4716539 | Multiplier circuit for encoder PCM samples A circuit multiplies pulse code modulation (PCM) samples in D2 format. An exponent adder provides the sum of the exponents of the two numbers. A mantissa multiplier circuit determines the product of the two mantissas and a sign generator provides a sign v... | 12/29/1987 |
| 4713791 | Real time usage meter for a processor system This invention is a device which permits the percentage of real time consumed by software tasks of a telecommunications switching system or other process controller to be measured and displayed on a percentage meter. The relative percentages of different ... | 12/15/1987 |
| 4707851 | Remote isolation test apparatus A remote isolation apparatus includes double-position switch for selectively coupling or isolating a telephone company central office and a multi-wire subscriber line. The switch operates according to a remotely originated activating signal so that, until... | 11/17/1987 |
| 4707850 | Test apparatus for a subscriber line An apparatus for enabling the performance loop resistance and DC balance checks on a subscriber line includes relay contacts coupled across the line terminals. The apparatus includes circuitry for detecting the application of an activating signal to the l... | 11/17/1987 |
| 4706277 | Interface circuit for transmitting command codes to an attendant console An interface circuit for transmitting data messages between a CENTREX equipped central office exchange and a remotely located attendant console. The interface circuit includes control and sense decoding circuitry arranged to output control signals to the ... | 11/10/1987 |
| 4692897 | Arrangement for dynamic range checking or matching for digital values in a software system This invention discloses a circuit for examining the value transmitted via a digital bus. A determination is made as to whether the value matches a predefined programmable value. An output indication is given for a match. In addition, this circuit may exa... | 09/08/1987 |
| 4684885 | Arrangement for on-line diagnostic testing of an off-line standby processor in a duplicated processor configuration Under normal operating conditions in an on-linne active/off-line standby duplicated processor system, only the on-line active processor is permitted access to the system's bus structure. The off-line standby processor is disconnected from the system buses... | 08/04/1987 |
| 4685103 | Control circuit for a centrex attendant console interface A control circuit for effecting the transfer of data messages between an interface circuit and a CENTREX equipped central office exchange. The central office exchange includes a peripheral processor and the interface circuit includes an input and an outpu... | 08/04/1987 |
| 4685130 | Subscriber line circuit having an improved loop current supply circuit An improved loop current supply circuit including a first amplifier connected to a source of bias voltage. The first amplifier is further connected to a subscriber loop circuit through the tip and ring conductors. The first amplifier receives the bias vol... | 08/04/1987 |
| 4677436 | Expandable electronic matrix An arrangement for connecting an array of individual electronic elements into a readily expandable matrix. The arrangement comprises a plurality of matrix slices with each slice including a set number of electronic elements as well as a row and a column b... | 06/30/1987 |
| 4677580 | Real time usage indicator for a processor system This invention is a device which permits the percentage of real time consumed by software tasks of a telecommunications switching system or other process controller to be measured and displayed on a percentage meter. The relative percentages of different ... | 06/30/1987 |
| 4677667 | Subscriber line circuit having improved AC impedance matching An improved AC impedance matching arrangement including a first amplifier connected to a subscriber loop through the tip and ring conductors of a subscriber line circuit. The first amplifier is arranged to supply loop current to the subscriber loop throug... | 06/30/1987 |
| 4674117 | Subscriber line circuit having an improved offhook supervision circuit An improved offhook supervision circuit including an amplifier connected to a subscriber loop through the tip and ring conductors of a subscriber line circuit. The amplifier is arranged to develop and output a loop voltage signal representing the level of... | 06/16/1987 |
| 4674036 | Duplex controller synchronization circuit for processors which utilizes an address input This circuit provides for synchronizing duplex copies of processor controllers. Either controller may be active in the simplex mode. That is, one controller is actively operating and controlling processors, while the other controller is in a standby mode.... | 06/16/1987 |
| 4672603 | Combined analog/digital CCIS data transmitter/receiver circuit Common channel interoffice data transfer circuitry is shown for transmitting and receiving both analog and digital CCIS data. This data transfer circuitry is a data terminal equipment control circuit. The terminal equipment control circuit is microprocess... | 06/09/1987 |
| 4648019 | High efficiency ringing generator An improved ringing generator is disclosed, for producing and transmitting an AC ringing voltage waveform to a subscriber line from a negative and positive DC voltage source. The ringing generator is characterized by a transformer having a primary winding... | 03/03/1987 |
| 4644540 | Diagnostic method for addressing arrangement verification This disclosure teaches a diagnostic method for finding faults in a unique addressing scheme. A telecommunications system controls external devices by operating control and sense point printed wiring cards. These printed wiring cards are organized to oper... | 02/17/1987 |
| 4637011 | Fault tolerant dual port serial link controller A multiple port serial link controller printed wiring card is shown. This printed wiring card provides at least two independent ports. These ports may be of different types such as RS-232 interface, RS-449 interface or other serial protocols such as HDLC,... | 01/13/1987 |
| 4637019 | Diagnostic method for addressing arrangement verification This disclosure teaches a diagnostic method for finding faults in a unique addressing scheme. A telecommunications system controls external devices by operating control and sense point printed wiring cards. These printed wiring cards are organized to oper... | 01/13/1987 |
| 4637012 | Flexible duplex dual port serial link controller A multiple port serial link controller printed wiring card is shown. This printed wiring card provides at least two independent ports. These ports may be of different types such as RS-232 interface, RS-499 interface or other serial protocols such as HDLC,... | 01/13/1987 |
| 4629267 | Circuit terminating device A circuit terminating device for mechanically retaining and electrically connecting a planar substrate such as a thick/thin film circuit to a printed wiring card. The terminating device is characterized by a terminating body having planar sidewalls defini... | 12/16/1986 |
| 4630197 | Anti-mutilation circuit for protecting dynamic memory This circuit provides a scheme for protecting a common dynamic memory of a distributed processing system. This circuit protects against premature completion of a memory access cycle by a CPU for any of a number of fault conditions. As a result, common mem... | 12/16/1986 |
| 4621354 | DTMF receiver sense and control maintenance arrangement The DTMF receiver sense and control arrangement collects and stores multiple customer originated data for determination of customer identification, validity and billing purposes. This arrangement is part of a telecommunications switching office and monito... | 11/04/1986 |
| 4613969 | Method for controlling a multistage space switching network This invention is a cost efficient method for controlling a multistage space switching network for high voltage applications. This method minimizes the number of control signal leads required to operate a multistage space switching network. If a switching... | 09/23/1986 |
| 4611204 | Arrangement for an electromechanical space switching network This invention is a cost efficient network arrangement for a space switching network for high voltage applications. This arrangement minimizes the number of control signal leads for a multistage switching network. If a switching network has N stages, then... | 09/09/1986 |
| 4611325 | DTMF receiver sense and control arrangement The DTMF receiver sense and control arrangement collects and stores multiple customer originated data for determination of customer identification, validity and billing purposes. This arrangement is part of a telecommunications switching office and monito... | 09/09/1986 |
| 4610011 | Controller for a multistage space switching network This invention is a cost efficient controller for a space switching network for high voltage applications. This controller is operated by a CPU which provides for generating a minimal number of control signals for a multistage space switching network. For... | 09/02/1986 |
| 4603235 | Dynamic event selection network This invention describes a method for mapping one or more of a number of input events to one or more of a number of output functions. This method involves the use of a memory device to perform the mapping between the input events and the output functions.... | 07/29/1986 |
| 4602133 | Adaptive echo cancelling system and method utilizing linear code spacing An improved adaptive echo cancelling system and method is disclosed. The system and method utilizes linear code spacing and is particularly well suited for echo cancellation of full scale signals. Echo cancellation is effected by use of digital-to-analog ... | 07/22/1986 |
| 4598166 | High density multi-layer circuit arrangement An arrangement for constructing multi-layered printed circuits characterized by a first layer having top and bottom surfaces with the top surface including a plurality of parallel conductors divided into at least two conductor groups by a transversely ori... | 07/01/1986 |
| 4598268 | Digital span conversion circuit In a telecommunications switching system, a thick film digital span conversion circuit is connected between a digital span and a switching network of the switching system. The circuit converts data, which is encoded for digital span use, to TTL logic codi... | 07/01/1986 |
| 4598404 | Data format arrangement for communication between the peripheral processors of a telecommunications switching network A formatted data message for conveying control information from the peripheral processor of one telecommunications switching system to the peripheral processor of at least one other telecommunications switching system is provided. The data message format ... | 07/01/1986 |
| 4596015 | Failure detection apparatus for use with digital pads The present invention is an approach for verifying the operation of read only memory digital pads associated with the switching network digital switching system. Any failures are detected and an indication is transmitted for fault detection and recovery.... | 06/17/1986 |
| 4594712 | Remote data link transmit data formatter A transmit data formatter is provided for assembling a plurality of 8-bit data bytes into a data message containing a plurality of message bytes. The transmit data formatter includes a receive buffer which receives a data byte from a peripheral processor.... | 06/10/1986 |
