lcd module pushwheel free sample

Use the LCD module display a mechanical pushwheel/thumbwheel type animated display. When numbers change they are scrolled up or down as if on a cylinder.

When a digit is changed on the device, the number on the display cylinder scrolls around to the next/previous digit. This ‘analog’ transition is what the LCD animation emulates. The effect is shown in the video below

In addition to the ‘standard’ ROM character set, the modules allow the user to define up to 8 additional characters (ASCII 0 through 7) at run time in the module’s volatile memory. These are set up by transmitting a bitmap made up of 8 bytes (one per row). The lower 5 bits of each byte represent the bit pattern to be displayed across each row. The LiquidCrystal library makes this process straightforward by providing the createChar()method for this purpose.

The first thing to realise is that, much like the physical pushwheel, the animated version needs to operate on individual digits. So any number must be split into its constituent parts at some point.

BYV32EB-200,118 : ULTRAFAST DIODE, DUAL COMMON CATHODE, 1.15V, D2PAK. s: No. of Phases: - ; Diode Type: Soft Recovery ; Repetitive Reverse Voltage Vrrm Max: 200V ; Forward Current If(AV): 20A ; Diode Configuration: Dual Common Cathode ; Forward Voltage VF Max: 1.15V ; Module Configuration: - ; Reverse Recovery Time trr Max: 25ns ; Forward Surge Current Ifsm Max: 137A.

This invention is directed to a universal module which serves as the basis for creating a plurality of embodiments of electrical display stations, each of which differs from other embodiments in functions performed and signals displayed. The universal module is adapted to be connected by a multiple conductor cable to remote process control instrumentation from which it may receive signals and to which it may transmit signals. Each embodiment is created by connecting to the universal module a combination of components unique to the embodiment selected from status indicators, switches, signal adjusting devices and the like.

A micro-processor system includes a central processing unit, clock circuit and a non-volatile memory storage unit. The memory storage unit provides an address for each embodiment of the electrical display station to be included in the product line. An embodiment selector is connected to the universal module to interconnect the circuits therein and to activate the address for an embodiment. When an address is activated, the micro-processor system processes signals in a prescribed manner through selected routines and sub-routines.

The connections to the universal module are preferably of the plug-in type for ease of assembly. By selectively mating the connections, electrical circuit paths are selected so that a single component serves for a plurality of different functions when installed in different embodiments.

The ease with which the components can be connected to the universal module enable relatively unskilled personnel to assemble each embodiment of the electrical display station. The ease of assembling embodiments is an important feature for two reasons. First, the manufacturer may assemble each electrical display station upon receipt of an order rather than maintain an inventory of each embodiment. This not only saves the cost of maintaining the inventory of each embodiment, but also reduces the cost of record keeping associated with such an inventory. Secondly, the user also benefits in two ways. It is often desirable to modify an electrical display station installed on a new process or it may be desirable to use electrical display stations removed from a discontinued process on a new process. In either case, the ease of creating an embodiment enables the user to make modifications in the field. The user may eliminate the need to keep on hand a variety of standby electrical display stations necessary to install in the place of one removed from the process for service. The user need only keep available a minimum number of universal modules and components from which semi-skilled personnel are able to create any embodiment required.

It is the object of this invention to provide a universal module which is adapted to serve as the basis for creating an entire line of electrical display stations.

It is another object of this invention to provide a universal module to which can be connected selected combinations of components to create embodiments thereof by relatively unskilled personnel.

It is still another object of this invention to provide a universal module which requires less inventory and inventory control to provide an entire line of stations.

It is a further object of this invention to provide a universal module having a more extensive choice in the number of signals which may be displayed and of the modes in which the signals may be displayed.

It is still a further object of this invention to provide a universal module having means for preventing an upset from occurring in a process when the process control instrumentation is switched between receiving a remotely generated set-point signal and a locally generated set-point signal.

4. Description of embodiments of electrical display stations created by selectively connecting components 52a-e and embodiment selector jumpers 79 to the universal module.

FIG. 1 is a diagram to illustrate how the universal module 10 may be used as the basis for creating a complete line of embodiments of electrical display stations 11 which are capable of serving a wide variety of process control instrumentation as shown to the right of dotted line 12. The universal module 10 is connected to the process control instrumentation by a multiple conductor cable 13. In practice, cable 13 may have thirty-two individual conductors, each of which is assigned to transmit a designated signal so that the same cable may serve to connect the universal module 10 to any one of a variety of process control instrumentation.

Referring to FIG. 2, an electrical display station is disclosed with the universal module 10 pulled out of case assembly 51 and with plug-in type of components 52a-52d, removed from the universal module 10. The multiple conductor cable 13 shown in FIG. 1 is connected to connector 53 mounted in the back of case assembly 51. The individual terminals of connector 53 are connected through circuit card 54 to edge type connector 55.

Casing assembly 51 includes housing 56 having a top mounting bracket 58 and screw 59. The casing assembly 51 is adapted to be mounted on a panel (not shown) by sliding housing 56 through an opening in the panel so that the back surface of front flange 57 abuts the front of the panel and casing assembly 51 is clamped in place by screw 59 abutting the back side of the panel. When universal module 10 is in operating position in case assembly 51, the back surface of front panel 61 engages the front surface of flange 57 and is held in place by screws 62 which project through front panel 61 to engage with theaded holes 60 in flange 57.

The universal module 10 includes a cover 63 which is shown in an open position to expose the front surface of front panel 61. The physical construction of the universal module is best shown by reference to FIGS. 2 and 3. Display mounting board 64 is mounted on the back surface of front panel 61 by post screw 65 with electrical display unit 66 connected thereto by plugging terminals 67 into connector 68 on display mounting board 64. Mounted on the back of display mounting board 64 is connector 69 which received edge engaging connector card 70. The other electrical elements and circuits on display mounting board 64 will be described later herein. Circuit mounting board 71 has mounted on the back surface thereof connectors 72, 74, 76 and 78 into which are plugged in edgewise engagement respectively micro-processor system card 73, display driver circuit card 75, input/output circuit card 77 and embodiment selector jumpers 79. The rear edge of input/output card 77 engages with connector 55 in the casing assembly 51 when the universal module 10 is inserted in the casing assembly 51 in operating positions. Plugged into the front surface of circuit mounting board 71 are connectors 80, 81, 82 and 83 so that when circuit mounting board 71 is attached to the front panel 61 and display mounting board 64 by post screws 64 and screws 84 the connectors line up respectively with openings 85, 86, 87 and 88 in front panel 61. Also plugged into the front surface of circuit mounting board 71 is connector 89 in a position so that when circuit mounting board 71 is assembled to display mounting board 65, connectors 69 and 89 are aligned and connector card 70 is plugged into each connector.

Referring to FIGS. 2 and 3, each embodiment of the electrical control station is created by selectively plugging into connectors 80-83 and 250 (FIG. 4) of the universal module 10 a combination of components 52a-3. The body for each component 52a-d is a printed circuit card 91-94 respectively which provides terminals on the back edge for selectively contacting terminals in connectors 80-83. The components selected and plugged into universal module 10 are held in place by screws 90.

Referring to FIGS. 4a and 4b, the universal module 10 of this invention is shown as a block diagram inside the dotted lines and components 52a-e which may be selectively connected to universal module 10 to create embodiments of electrical display station 11 are shown as circuit diagrams outside the dotted line.

Referring to FIGS. 4a, 4b and 5, the power is supplied through terminals 22-24 of connector part 53p is fed to terminals 1-3 respectively of power supply circuit 150. Power supply circuit 150 is located on display mounting board 64. Direct current power may be supplied in the order of +15 volts between input terminals 1 and 3 and -15 volts between input terminals 2 and 3. The common input terminal 3 is connected by line 154 to output terminal 9 and through output terminal 10 to ground 155, which serves as a common ground for all circuits shown in FIGS. 4a and 4b. The conductive path in cable 13 through terminal 24 of connector part 53a is connected to the ground of the process control instrumentation. The direct current power received between input terminals 1 and 3 and between input terminals 2 and 3 is fed through filter 156. The filtered positive direct current is fed through line 157, direct current converter 158 to output terminal 7 to provide between output terminals 7 and 9 power having a voltage in the order of 260 volts for energizing electrical display unit 66. A second output from direct current converter 158 is fed through line 160 to voltage regulator circuit 161 to output terminal 6 to provide between output terminals 6 and 9 power having a regulated voltage in the order of +5 volts. The filtered positive direct current power is fed through line 163 and voltage regulator 165 to output terminal 5 to provide between output terminals 5 and 9 a regulated voltage in the order of +15 volts and to provide between output terminals 4 and 9 a regulated voltage in the order of +12 volts. The filtered negative direct current power is fed through line 167 and voltage regulator circuit 165 to output terminal 8 to provide between output terminals 8 and 9 a regulated voltage in the order of -15 volts. This power supply circuit 150 receives power from an outside source and provides a plurality of power circuits of the required voltage for the various individual circuits of module 10 and the selected components 52a-e which may be selectively connected to universal module 10 to create an embodiment of electrical display station 11.

Analog signals are generated in universal module 10 in cooperation with thumbwheel component 52a and alarm component 52d. Thumbwheel component 52a is adapted to be connected to eigher connector 82 or 83. Alarm component 52d is adapted to be connected to connector 81.

4. Description of embodiments of electrical display station created by selectively connecting components 52a-e and embodiment selector jumpers 79 to universal module.

The ten embodiments which have been described teach the features of this invention. It is apparent from the above description that the universal module can be adapted to create additional embodiments by the addition of other components and by providing an address for each additional embodiment included in the line of electrical display stations.

As shown in FIG. 1, an exemplary biopsy system (2) includes a biopsy device (100) for cutting and storing tissue samples acquired from a patient and a vacuum control module (500). As shown in FIGS. 2-4, biopsy device (100) of the present example comprises probe (105) and holster (205). Conduits (501) operatively attach to biopsy device (100) and extend between biopsy device (100) and vacuum control module (500). Biopsy device (100) of the present example is sized and balanced for single handed operation, and comprises a needle portion (10) extending distally therefrom for inserting into a patient and acquiring tissue samples from the patient. Needle portion (10) is longitudinally constrained yet rotatable relative the remainder of biopsy device (100), though in other versions needle portion (10) may be non-rotatable and/or operable to translate longitudinally relative the remainder of biopsy device (100). As will become apparent in view of the teachings herein, some versions of biopsy device (100) may offer size reductions, improved balance, and enhanced single handed grasping of biopsy device (100) with an operator or surgeon"s hand (1000). For instance, biopsy device (100) may be operated in a handheld fashion under ultrasonic imaging guidance.

By way of example only, probe (105) may be provided as a disposable component, while holster (205) may be provided as a reusable component. Vacuum control module (500) is provided on a cart (not shown) in the present example, though like other components described herein, a cart is merely optional. Among other components described herein, a footswitch (not shown) and/or other devices may be used to provide at least some degree of control of at least a portion of biopsy system (2). Conduits (501) provide communication of power (e.g., electrical, pneumatic, mechanical, etc.), control signals, saline, vacuum, and/or venting from vacuum control module (500) to biopsy device (100). One example of a vacuum control module (500) and how it may be used is disclosed in U.S. Pub. No. 2008/0195066, entitled “Revolving Tissue Sample Holder For Biopsy Device,” published Aug. 14, 2008, the disclosure of which is incorporated by reference herein. In addition, an interface may be provided between vacuum control module (500) and biopsy device (100). Such an interface may be provided in accordance with the teachings of U.S. Non-Provisional patent application Ser. No. [FBT DOCKET NO. 0021680.END6466USNP], entitled “CONTROL MODULE INTERFACE,” filed on even date herewith, the disclosure of which is incorporated by reference herein.

A vacuum port (79) enters a proximal side of central thumbwheel (60) and contains a vacuum passage (55) connecting to a distal side of central thumbwheel (60) to communicate with recessed bore (67) of the central thumbwheel (60) for the transfer of vacuum or fluids therebetween. Vacuum cannula (79) is connected to a distal end of tube (504) to form an unbroken line of communication (fluids and/or vacuum, etc.) between vacuum control module (500), tube (504), vacuum passage (55), recessed bore (67), hollow sleeve lumen (69), and vacuum lumen (40) of needle portion (10). If desired, a vacuum control valve may be operatively coupled to tube (504) to control when vacuum or fluids are applied thereto. For instance, such a vacuum control valve may be located in vacuum control module (500) or elsewhere. Suitable components and methods relating to communication of vacuum and fluids, as may be implemented in biopsy system (2), are described in U.S. Pub. No. 2008/0195066, entitled “Revolving Tissue Sample Holder For Biopsy Device,” published Aug. 14, 2008, the disclosure of which is incorporated by reference herein.

As shown in FIGS. 3 and 11-14, cutter drive mechanism (210) of the present example comprises a drive cable (215) having an inner wire cable (217) rotatably encased in a sheath (219). Drive cable (215) extends between holster (205) and the vacuum control module (500). A motor (530) is located within vacuum control module (500) and is operably coupled to a proximal end of the drive cable (215) (FIG. 1) to rotate inner wire cable (217) within the non-rotating sheath (219). By way of example only, motor (530) may be provided in accordance with, and incorporated with vacuum control module (500) in accordance with, the teachings of U.S. Non-Provisional patent application Ser. No. [FBT DOCKET NO. 0021680.END6466USNP], entitled “CONTROL MODULE INTERFACE,” filed on even date herewith, the disclosure of which is incorporated by reference herein.

In the present example, an encoder assembly (240) mounts to a proximal end of idler shaft (232) and is operably connected to motor (530) via wiring (280) extending between holster (205) and vacuum control module (500). Encoder assembly (240) is secured in holster (205) between top housing member (207) and bottom housing member (206). Wiring (280) extends to a connector (514), to which another wire (254) is connected as described below. An encoder cable (515) extends from connector (514) to vacuum control module (500). Encoder assembly (240) of this example measures rotational movement of idler shaft (232) and may be used to “count” revolutions of idler gear shaft (232), which may be used (e.g., with the thread ratio of threads (81, 86)) to indirectly measure rotation and translation (linear travel) of cutter (50) within probe (105). Gears (225, 230, 234, 238) of the present example are configured to provide a 1.5:1 rotational ratio between wire cable (217, 317) of drive cable (215, 315) and idler shaft (232); and a 1:1 rotational ratio between wire cable (217, 317) of drive cable (215, 315) and the intermediate driven gear (238). Encoder assembly (240) “counts” 1.5 revolutions at idler shaft (232) for every rotation of wire cable (217, 317) of drive cable (215, 315). The rotational and positional information from encoder assembly (240) may be used to determine if idler shaft (332) is rotating, may measure idler shaft (332) speed, may measure rotational position of shaft (332), and/or may be used for homing routines to determine the location of cutter (50) (e.g., longitudinal position) within biopsy device (101). Alternatively, any other suitable use may be made of encoder assembly (240), to the extent that an encoder assembly (240) is included at all.

An encoder (253) mounts to a distally extending portion of shaft (252) and is used to sense rotational motion or rotational positioning of piezoelectric motor (250), and to indirectly measure movement of manifold (144) within the tissue sample holder (140). A cable or wire (254) extends from encoder (253) to connector (514), to encoder cable (515), and to vacuum control module (500). As noted above, encoder assembly (240) and the idler shaft (232) a re also electrically coupled to vacuum control module (500) via wire (280) connecting to connector (514) and encoder cable (515). Encoder cable (515) may extend along sheath (219) and may be secured thereto or therein. Alternatively, encoder cable (515) may be provided as separate from sheath (219). Further still, encoder cable (515) and wires (280, 254) may be eliminated, and electronic communication may be provided wirelessly. As yet another merely illustrative variation, cable (515) and wires (280, 254) may be attached or integrated circumferentially with mechanical cable (215). Of course, encoders (240, 253) may also be omitted altogether if desired.

As shown in FIG. 16, an encoder assembly (340) mounts to a proximal end of the idler shaft (332) and is operably connected to motor (530) via wiring (not shown) extending between holster (305) and vacuum control module (500). Encoder assembly (340) may be configured and used in the same way as encoder assembly (240) of holster (205) described above. Alternatively, encoder assembly (340) may be configured and/or used in any other suitable fashion, if not omitted altogether.

In a merely exemplary use of biopsy device (101), biopsy device (101) is assembled by operably coupling probe (105) with holster (305) and then operably coupling the assembled biopsy device (101) with vacuum control module (500). With probe (105) attached to holster (305), thumbwheel (60) is rotatingly engaged with the tissue holder rotational mechanism (340) in holster (305), and is therefore rotatingly engaged with rotatable manifold (144) within tissue sample holder (140). Furthermore, with probe (105) attached to holster (305), gears (338, 84) are coupled such that cutter drive mechanism (310) within holster (350) is operably engaged with cutter (50) within the probe (105). With the cable driven cutter drive mechanism (310) operably engaged with cutter (50), homing routines may be performed, if required or desired, to identify a “home” position of cutter (50) within probe (105).

As shown in FIG. 1, an exemplary vacuum canister (600) is configured to be coupled vacuum control module (500). Vacuum control module (500) is operable to induce a vacuum through vacuum canister (600), and such a vacuum may be communicated to probe (105) via tubes (502, 504). For instance, vacuum control module (500) may communicate a vacuum through tube (502), which may then communicate the vacuum through tissue sample holder (140) to cutter lumen (52) as described above. Vacuum control module (500) may also communicate a vacuum through tube (504) to manifold (70), which may then communicate the vacuum to vacuum lumen (40) as described above.

Furthermore, vacuum canister (600) is operable to collect fluids that are communicated from biopsy probe (105) during use of biopsy probe (105). Vacuum canister (600) may thus be regarded as providing a fluid interface between biopsy probe (105) and vacuum control module (500). Any suitable vacuum control module and vacuum canister may be used such as those described in U.S. Pub. No. 2008/0195066, entitled “Revolving Tissue Sample Holder For Biopsy Device,” published Aug. 14, 2008, the disclosure of which is incorporated by reference herein. Further, any other suitable component, system, technique, or device may be used with the suitable control module or vacuum canister.

As noted above, vacuum control module (500) of the present example also includes a motor (503) that is operable to rotate cable (217), such as to actuate cutter (50) as described above. By way of example only, motor (503) may be associated with vacuum control module (400) as taught in U.S. Non-Provisional patent application Ser. No. [FBT DOCKET NO. 0021680.END6466USNP], entitled “CONTROL MODULE INTERFACE,” filed on even date herewith, the disclosure of which is incorporated by reference herein. Of course, the features and functionality of vacuum control module (500) and vacuum canister (600) as described herein are mere examples.