International Business Machines Corporation

Other

Joseph Kinman Lee

Kenneth James Barker

Samuel Steven Allison

Joel Erwin Geyer

Vernon Roberts Norman

Ilya I Novof

Kenneth T Wilson

John E Gersbach

Daniel Ray Spach

Prasanna Srinivasan

Darren Paul Umstead

Richard J Lee

Steven Howard Johnson

Brian Mitchell Bass

James Lee Lentz

Lee Anton Sendelbach

Loren Blair Reiss

Edward Hau-chun Ku

Anthony D Walker

Jim Philip Ervin

Douglas Ray Henderson

Joseph M Rash

Scott J Lemke

John M Mullen

Mark Crane Wartski

Scott Tippens

Kathleen Miriam Wilhelm

Russell Evan Schroter

Gregory A Mirek

David W Lowther

Dale R Chamberlain

Drywall spike

A wireless system that detects the presence of a child in a safety seat located in the passenger cabin of a vehicle includes a controller responsive to signals generated by sensors monitoring predefined functions of the vehicle, RFID tag device attached to the safety seat and RFID tag reader mounted in the cabin. The system generates control signals which activate an alarm, open the doors of the vehicle and roll down windows if the child is left in the safety seat of an unattended vehicle.

Wireless system to detect presence of child in a baby car seat

Wireless system provided in a vehicle to detect presence of child in a baby car seat

An architecture and NIC (Network Interface Card) for coupling Data Processing Equipment to a communications network includes a host memory having a High Priority Queue storing control information and data, a Low Priority Queue storing control information and data. Control registers, in the NIC, store addresses identifying the location of said Queues and a block size register, in the NIC, stores a value representing the size of data blocks to be transferred from the host memory to the NIC. A controller transfers allowable block size data from the host memory to buffers on said NIC.

Architecture and apparatus for implementing 100 MBPS and GBPS ethernet address

Architecture and apparatus for implementing 100 Mbps and GBPS Ethernet adapters

Methods, systems or apparatus and computer program products are provided that interface between two data buses operating at different speeds. Such interfaces utilize a buffer which has an apparent size larger than the physical size of the buffer to receive blocks of data which are larger than the size of the buffer. The apparent size of the buffer is created by simultaneously writing data to and reading data from the buffer such that the same storage locations may be used more than once to hold the data. The present invention may be utilized for receiving data from either the high speed or the lower speed bus.

Phantom buffer for interfacing between buses of differing speeds

A detector and method for detecting Wakeup-On-LAN (WOL) frames in which the Wakeup field can start on a two byte word boundary (even) or in the middle of the two byte word (odd). The orientation (even/odd) of the WOL and destination address (DA) fields are determined and a first or second two byte process, depending on the orientation, is selected to analyze the frame to determine if it is valid.

Dual two byte process for fast wake-up-on LAN frame detection

A system and method to avoid transmit underruns from a host system to a communication network using an adjustable threshold on a frame basis. The host system includes a device driver, host descriptors and host buffer. The host descriptor define the number of blocks of data to be transferred from the host to the network via a Media Access Control (MAC) device. The MAC device includes a processor, a transmit storage device, and a medium independent interface coupled to the network. The MAC device is connected to the host system via a data bus. A host descriptor is generated for each frame of data transferred by the MAC device from the host to the network. The descriptor is generated by the device driver and provides the MAC processor with a block size of data to be transferred and a threshold in each frame indicating the number of blocks of data to be transferred from the host system to the MAC device to avoid an underrun before transmission to the communication network. The MAC processor generates and transmits a 'retry' bit to the device driver when a transmit underrun occurs. The device driver modifies the threshold in subsequent frames to avoid transmit underruns by raising or lowering the thresholds according to the number of retries.

System and method for avoiding host transmit underruns in a

In a local area network, a system and a method to detect transmit underruns and retransmit frames between a sending station and a receiving station using a Media Access Control (MAC) device in lieu of a sending processor. The MAC device includes a MAC processor for transmitting data in blocks from a host buffer to a storage device, e.g., RAM for retransmission to the network via a Media Independent Interface (MII) unit. The MAC device includes a transmit logic unit which uses a control word set by the MAC processor to transmit data by frames from the storage device to the network. The transmit logic unit includes pointer control logic to identify the start address of the data and to track the data as read from the storage device to the network. When a transmit underrun occurs, the transmit logic recognizes the condition and resets the pointer logic to the start of the first frame for retransmission to the receiving station. During retransmission, the MAC processor continues to transfer data from the sending system to the storage device which eventually provides sufficient data to overcome the underrun condition. A frame is repeated if a underrun condition continues until the frame is transmitted without an underrun condition which eliminates the retransmission request of the receiving station to the sending station. The MAC device enables underruns to be transparent to the sending and receiving station.

System and method for automatic retry of transmit, independent of a host

A method and system are provided for traffic shaping and bandwidth scaling in a high speed internetworking device. A slot time wheel mechanism is provided for traffic rate control and a credit/debit mechanism is provided for traffic shaping and scaling. The high speed traffic scaler and shaper incorporates a programmable slot time wheel, a traffic scaler state machine, a traffic shaper parameter table and a traffic scaler processor. The traffic scaler processor incorporates a traffic queue allocation manager, a queue priority arbiter, a port enable selector, a port priority arbiter and a DMA channel arbiter. The traffic queue allocation manager and the queue priority, port priority and DMA channel arbiters are each controlled by a corresponding state machine. The parameters in the traffic shaper parameter table are dynamically updated for each logical queue and are used to enable the credit/debit mechanism.

High speed internetworking traffic scaler and shaper

An ATM information system processes information at the frame level using a processor including a device driver; a system memory and an adapter for sorting data cells into partially completed frames stored in the system memory using control information provided by the device driver. A controller in the adapter determines when an end of frame indication is received in a cell and updates a pointer in system memory for a completed frame list to a recently completed frame. The device driver processes frames in a completed frame list according a priority of the list. The device driver processing is independent of the sorting and storing of completed frames received in the system memory which improves the performance of the driver and the ability to handle delay sensitive traffic.

System and method for multi-frame received queuing with sorting in an

A computer controlled odor mixing and dispensing system has an linear array of odorant containers arranged in an annular member. Each container is provided with a computer controlled metering delivery device which dispenses the odorant onto a rotating absorptive porus member. An air handling system forces air through the rotating member which mixes the odors deposited thereon and delivers the mixed odors to a user.

Computer controlled olfactory mixer and dispenser for use in multimedia

An adapter which attaches Data Terminal Equipment (DTE) to a LAN includes a latch whose state is changed by conditions, such as a free token or a frame, on the LAN. The Output of the latch is used to calculate the bandwidth utilization of the LAN.

Real-time ring bandwidth utilization calculator by sampling over a

A network interface card for attaching computers, work stations or the like to a Local Area Network (LAN) includes a device which indicates an address compare if selected bits in a first part of an address, in the address field of a received frame, matches bits stored in the network interface card and at least one bit of a code word stored at a particular address of an index RAM is set to a predetermined state. The particular address in the index RAM is identified by a second part of the address in the received frame. The range of address which can be recognized is further extended by a contents addressable memory (CAM) coupled to the device. The CAM makes a parallel compare between an input address and its contents and outputs a match signal if a match is found. A programmable control register is used to activate or deactivate the CAM or the device.

Multiple group address recognition

Growing community of inventors

Raleigh, NC, United States of America

Joseph Kinman Lee