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| Number | Title | Issue Date |
| 5916315 | Viterbi detector for class II partial response equalized miller-squared signals A novel circuit arrangement decodes Miller-squared (M2) encoded signals using Class II partial response (PR2) equalization techniques. The circuit arrangement utilizes a maximum-likelihood sequence estimator (detector) implemented by the Viterb... | 06/29/1999 |
| 5543977 | Data recording system having improved longitudinal and helical search capability A helical type tape recording and reproducing system records blocks of user data-of predetermined size by reformatting the user data blocks into physical blocks that are recorded on tape. The system format includes helical tracks in which user data blocks... | 08/06/1996 |
| 5402294 | Laminated, high frequency, magnetic transducer and manufacturing method therefor A magnetic transducer for reproducing/recording high frequency signals with a magnetic tape medium includes a pair of opposed transducer head halves separated by an insulation gap and bonded together to form a Y-shaped pole structure, each half including ... | 03/28/1995 |
| 5364194 | Axially displaced flexural bearing support An apparatus for an axially displaced flexural bearing support assembly including a unitary or monolithic bearing support base member having a bearing receiving tube supported by a first and second generally parallel arrangement of flexural spoke members ... | 11/15/1994 |
| 5349611 | Recovering synchronization in a data stream Input data symbols are written in a write buffer then to a sync adder, which appends a pseudo randomly (PN) generated sync bit to the MSB position of a four-symbol sync word data field, to generate a sync word. Sync words may or may not be randomized and ... | 09/20/1994 |
| 5343301 | Input clock presence detector for a digital video input A method and apparatus for input data clock presence detection which utilizes an up/down counter clocked by a reference clock, which operates at a nominal frequency rate half of the nominal rate of the input data clock, and an R/S flip-flop causing the up... | 08/30/1994 |
| 5341251 | Data recording system having longitudinal tracks with recordable segments A helical tape recording and reproducing system which has longitudinal physical address track for recording physical address data relating to the physical layout of the tape and a logical address track that contains data relating to the content of the rec... | 08/23/1994 |
| 5323272 | Time delay control for serial digital video interface audio receiver buffer An audio receiver FIFO memory buffer in the serial digital video interface allows improved timing synchronization between video and audio information. Furthermore, it eliminates unpleasant sound effects when multiple data samples are skipped or repeated i... | 06/21/1994 |
| 5305108 | Switcher mixer priority architecture A switcher mixer architecture creates special effects such as a dissolve or a wipe from one priority structure of the elements of an image scene to a completely different prioritized ordering of those same or even other elements that comprise the same or ... | 04/19/1994 |
| 5301018 | Method and apparatus for shuffling image data into statistically averaged data groups and for deshuffling the data In a data compression process such as employed to compress video or other data, it is preferable not to compress the image data representative of the video image in a sequential format, or to take the data from the same area of the image. To equalize the ... | 04/05/1994 |
| 5296790 | Motor driven damping arrangement and method An arrangement involving apparatus and process damps vibrations, for example, rotary or linear vibrations, in a member to be damped, for example, in a supply tension arm forming part of a tape transport of a digital cassette recording system. The arrangem... | 03/22/1994 |
| 5291134 | Erase head positioning method A method for analyzing the relative spatial alignment of the erase head pole tips relative to the record head pole tips on a recording of a magnetic tape to be partially overwritten by providing, through first and second erase heads, successive momentary ... | 03/01/1994 |
| 5267392 | Method of manufacturing a laminated high frequency magnetic transducer A magnetic transducer for reproducing/recording high frequency signals with a magnetic tape medium includes a pair of opposed transducer head halves separated by an insulation gap and bonded together to form a Y-shaped pole structure, each half including ... | 12/07/1993 |
| 5248112 | Tape transport control system with a feedforward capstan drive to the reel motors A feedforward circuit applies a capstan drive current, or its equivalent, to the reel tension servo circuits whose associated reels are transporting the tape. The additional drive current to the reel drive motors increases the rotational velocity of the r... | 09/28/1993 |
| 5237701 | Data unpacker using a pack ratio control signal for unpacked parallel fixed m-bit width into parallel variable n-bit width word The data unpacker receives packed parallel input data words having a fixed width of m bits, and it outputs parallel data words having a variable width of n bits. An input register stores the received words and applies them to a bit shifter. The bit shifte... | 08/17/1993 |
| 5231499 | Keyed, true-transparency image information combine A keyed, true-transparency combine and keyer receive a plurality of image information signals Vi, each having a corresponding input key signal Bki, over a respective channel. The image signals are dynamically ranked in a prioritized ... | 07/27/1993 |
| 5222069 | Miscorrection arrangement for the concealment of misdetected or miscorrected digital signals With a digital audio or video recorder/playback decoder, an erasure flag signals (1) that an error(s) was not detected in a video signal or that an error(s) was detected and was corrected or (2) that an error(s) was detected and was not corrected. Decoder... | 06/22/1993 |
| 5219191 | Externally actuated enclosure latch assembly An enclosure latch arrangement including at least one latch assembly for securing a first enclosure portion relative to a second enclosure portion by providing, on the inside of the first enclosure a stationary latch bracket member having a pair of spaced... | 06/15/1993 |
| 5214718 | Scan-in polygonal extraction of video images A video image is extracted and stored as a geometric figure by generating a binary pixel map of the image. The binary pixel map contains one bit for each pixel in the image, representative of the value of a characteristic feature of that pixel relative to... | 05/25/1993 |
| 5214512 | Keyed, true-transparency image information combine A keyed, true-transparency combine and keyer receive prioritized image information signals and their corresponding input key signals. On the one hand, others have changed the order of the channels carrying the image signals as the priority of the image si... | 05/25/1993 |
| 5194827 | Voltage controlled high frequency equalization A method and apparatus for equalizing high frequency video signals is disclosed. A video signal to be equalized is received at an input terminal of a network and an equalized video signal is provided from an output of an operational amplifier to an output... | 03/16/1993 |
| 5166848 | Automatic scan tracking mechanism An improved head mounting structure which disposes a beam-like head support assembly for movement about a center hinge. A magnetic recording head is supported at an outer end of the head support beam assembly and a moving coil is supported at an opposite,... | 11/24/1992 |
